President of Switzerland
Begins a one-year term as President of the Swiss Confederation.
Historical events in 1925
497 historical records
January 192519 historical events
Independence of Syria
The Peoples Party demands independence. France agrees to the unity of Damascus & Aleppo with a French high commissioner
Extragalactic Nature of Spiral Nebulae
Hubble's results on Cepheid variables in spiral nebulae are formally presented at a joint meeting of the American Astronomical Society and the American Association for the Advancement of Science.
NSDAP
Hitler begins his political comeback by meeting with new ministers and President of Bavaria
Governor
Appointed Governor of Wyoming, 1st female Governor in the USA
Birth of John De Lorean
Birth of John De Lorean
Conference of Allies
Tries to reduce Germany's war debts to France & France's war debts to the US. Attends the Allied Financial Conference
French Security Note
A January approach to France opens Stresemann's push for a western security settlement.
German note sent to France suggesting western security pact
German note sent to France suggesting western security pact
Dismissal
Stalins "Socialism in one country" conflicts with Trotskys "Permanent Revolution". Dismissed as the Chairman of the Russian Revolutionary Council
Birth of Gilles Deleuze
Gilles Deleuze is born in Paris.
Withdrawal Negotiations at Sakhalin
Diplomatic relationa are restored with Russia as Japan withdraws from north Sakhalin
Rule of Sakhalin
Japan evacuates North Sakhalin
German note sent to London suggesting western security pact
German note sent to London suggesting western security pact
London Security Note
Later in January, a German diplomatic note asks London to consider the proposed western pact.
Birth of Paul Leonard Newman
Birth of Paul Leonard Newman
Birth of Douglas Engelbart
Birth of Douglas Engelbart
President Appointed
Elected President after the republic is proclaimed
Andromeda Extragalactic Result Presented
Presents the Andromeda Cepheid evidence to the astronomical community, establishing M31 as a separate galaxy and greatly enlarging the known scale of the universe.
February 192530 historical events
Birth of John Uhler Jack Lemmon
Birth of John Uhler "Jack" Lemmon
Luther Supports Western Security Initiative
Luther's government backs the security initiative that becomes the starting point for the Locarno negotiations.
German Security Pact Proposal
Germany proposes a western security pact guaranteeing its frontiers with France and Belgium as a basis for European reconciliation.
Western Security Note Drafted
Stresemann helps frame Germany's proposal for a pact guaranteeing the western frontiers with France and Belgium.
German Rehabilitation
Uses western frontier guarantees to support Germany's rehabilitation among the western powers.
Reciprocal Frontier Guarantee
Proposes reciprocal recognition of Germany's western frontiers established at Versailles.
Death of Friedrich Ebert
Death of Friedrich Ebert, from the effects of an appendicitis operation
NSDAP
The ban on the NSDAP is lifted
Voelkischer Beobachter
The Beobachter resumes publication
A New Beginning
Published with an editorial written by Hitler, "a new beginning". Hitler confirms the party constitution 1st proclaimed in 1921
Constitution of Germany
Hitler confirms the party constitution 1st proclaimed in 1921
with an editorial
Published with an editorial written by Hitler, "a new beginning". Hitler confirms the party constitution 1st proclaimed in 1921
Rally
Opens the NSDAP meeting
NSDAP
Attends the rally & at the end unites with the NSDAP
Rally
Attends the rally & at the end unites with the NSDAP
NSDAP
Attends the rally & at the end unites with the NSDAP
Rally
Attends the rally & at the end unites with the NSDAP
NSDAP
Attends the rally & at the end unites with the NSDAP
Rally
Attends the rally & at the end unites with the NSDAP
NSDAP
Relaunches the NSDAP at a rally in Munich
Rally
Holds a meeting at the Burgerbraukellar, 3,000 attend & 2,000 are turned away
NSDAP
Attends the rally & at the end unites with the NSDAP
Rally
Attends the rally & at the end unites with the NSDAP
NSDAP
Attends the rally & at the end unites with the NSDAP
Rally
Attends the rally & at the end unites with the NSDAP
NSDAP
Attends the rally & at the end unites with the NSDAP
Rally
Attends the rally & at the end unites with the NSDAP
Birth of Harry H Corbett
Birth of Harry "H" Corbett
League Membership Linked to Security Settlement
Stresemann treats improved western security and Germany's admission to the League as connected diplomatic objectives.
Reballion of Outbreak of
Outbreak of rebellion in Kurdistan
March 192516 historical events
Prime Minister of Turkey
Appointed Prime Minister of Turkey, 3rd term
Agricultural Rates Bill
Speaks on the Agricultural Rates Continuance Bill and its effect on public finance.
Inaugural Address
Uses his vice-presidential inaugural speech to attack Senate procedural obstruction.
Senate Presidency
Begins presiding over the United States Senate as Vice President.
Vice President
Sworn in as Vice President of the United States under Calvin Coolidge.
General Medical Council
Raises matters concerning the General Medical Council in the Commons.
Prime Minister of Turkey
Appointed Prime Minister of Turkey, 2nd term
President of Chile
Returns to the presidency after the January military movement recalls him from exile.
Rent and Mortgage Restrictions Bill
Contributes to debate on continuing rent and mortgage interest restrictions.
Prime Minister
Takes office as Prime Minister of Finland and forms a government in Helsinki.
Government Ends
His government ends in Helsinki, concluding this term as Prime Minister of Finland.
Death of Sun Yat-Sen
Death of Sun Yat-Sen
Briand Seeks Binding Western Guarantee
Briand seeks a binding international guarantee of France's frontier with Germany and the demilitarized Rhineland.
Western Frontier Guarantee Accepted in Principle
Stresemann accepts the principle of guaranteeing Germany's western frontiers while avoiding a comparable territorial guarantee in the east.
Royal Warwickshire Company Training Programme
Takes command of a company of the Royal Warwickshire Regiment and introduces a structured six-month training programme.
Reform of Marriage Law
Polygamy is outlawed
April 192514 historical events
Building Industry Apprenticeship
Addresses apprenticeship and labour supply in the building industry.
Citizenship
Renounces Austrian citizenship
Citizenship
Brunswick makes Hitler a German citizen on the eve of the Presidential election. Avoids deportation from Germany by becoming "staatenlos",
Election
Brunswick makes Hitler a German citizen on the eve of the Presidential election
President of Germany
Appointed President of Germany, 1st term
Return to Gold
Churchill announces restoration of sterling's pre-war gold parity.
Budget
Churchill presents his first budget and announces the Government's intention to restore sterling's gold parity.
Economy of Great Britain
The budget announces sterling's return at the pre-war rate of approximately 4.86 United States dollars per pound.
Income Tax
Churchill's budget combines the gold-standard announcement with reductions in the standard rate of income tax.
Return to Gold Standard
The Netherlands restores the guilder to the gold standard at its pre-war parity immediately after Britain's return to gold.
Marriage
Marries Chou En-Lai
Eastern Arbitration Approach Developed
Germany favors arbitration treaties with Poland and Czechoslovakia rather than guaranteeing its eastern frontiers.
Buenos Aires Relativity Lectures
Lectures in Buenos Aires on relativity and modern theoretical physics, bringing his account of spacetime and gravitation to large South American audiences.
Montevideo Relativity Lectures
Visits Montevideo and discusses relativity with university and public audiences, extending the international circulation of his gravitational and spacetime ideas.
May 192518 historical events
Strike
Organizes the printing of a Government newspaper, the "British Gazette". Advocates "no surrender" to the strikers
Afrikaans Official Language
Supports legislation recognizing Afrikaans as an official language.
Language Status Reform
The change replaces Dutch for official constitutional purposes.
Aloys Van de Vyvere Government
Begins the Aloys Van de Vyvere Government in Brussels and serves as Prime Minister of Belgium.
First Georges Theunis Government
The First Georges Theunis Government ends in Brussels, concluding this period as Prime Minister of Belgium.
Gold Standard Act
The Gold Standard Act receives royal assent and restores convertibility of sterling into gold bullion.
Gold Standard
The Bank of England is required to sell gold bullion at the statutory pre-war price.
Gold Standard Act
Baldwin's Government enacts the statutory return of sterling to gold bullion convertibility.
Death of Alfred Milner
Death of Alfred Milner, of sleeping sickness soon after returning from South Africa, his viscountcy, lacking suitable heirs, dies with him
Building Materials Bill
Debates proposals concerning the charges and supply of building materials.
General Strike
Praised by the Daily Mail for his handling of the General Strike
Strike
Praised by the Daily Mail for his handling of the General Strike
Birth of Malcolm X
Birth of Malcolm X, Malcolm Little
Machado Presidency
Begins presidency before his rule hardens into dictatorship.
Death of John Denton Pinkstone French
Death of John Denton Pinkstone French
Death of John French
Death of John French, Earl of Ypres.
French Security and Reconciliation Policy Combined
Briand combines demands for security with a willingness to pursue political reconciliation with Germany.
Rio de Janeiro Relativity Lectures
Speaks in Rio de Janeiro during his South American tour, explaining relativity while participating in debates about theoretical science and its wider significance.
June 19258 historical events
Marriage
Howard Hughes marries Ella Rice
Appointment as Arsenal Manager
Is appointed Arsenal manager and begins the period that transforms the club into a major English force.
Aloys Van de Vyvere Government
The Aloys Van de Vyvere Government ends in Brussels, concluding this period as Prime Minister of Belgium.
Prosper Poullet Government
Begins the Prosper Poullet Government in Brussels and serves as Prime Minister of Belgium.
United States Signs Geneva Protocol
The United States signs the Geneva Protocol prohibiting use in war of chemical and bacteriological methods of warfare.
Birth of Luis Adolfo Siles Salinas
Luis Adolfo Siles Salinas is born in La Paz.
Military Coup of Pangalos
Pangalos seizes power and establishes a military dictatorship.
Contributory Pensions Bill
Takes part in debate on the Contributory Pensions Bill and social insurance provision.
July 19259 historical events
Birth of Patrice Amery Lumumba
Born in Onalua in the Belgian Congo, later becoming a leading nationalist and the country's first prime minister.
Contributory Pensions Bill Committee
Continues scrutiny of the Contributory Pensions Bill during its Commons stages.
Hall of Memory
Prince Arthur opens Birmingham's memorial to residents killed in the First World War.
President of Ecuador
Appointed collective provisional government of Ecuador after the July Revolution
Double Pensions Provision
Addresses provisions intended to prevent overlapping pension payments.
Pensions Disqualifications
Debates proposed disqualifications under the contributory pensions legislation.
Mein Kampf", Volume I
Publication of "Mein Kampf", Volume I
Mein Kampf
Publication of "Mein Kampf", Volume I
Unemployment Insurance Bill
Speaks on unemployment insurance legislation during the summer session.
August 19258 historical events
Contributory Pensions Bill Final Stages
Returns to the contributory pensions legislation during its later Commons stages.
Silk and Import Duties
Takes part in debate on silk and import duties.
Death of Surendranath Bonerjee
Death of Surendranath Banerjee
Marriage to Deng Yingchao
Marries Deng Yingchao, his longtime political partner and fellow revolutionary activist.
Central Bank of Chile
Promulgates legislation creating the Central Bank of Chile.
Gold Standard Restoration
Restores the gold standard as part of the monetary reforms associated with the Kemmerer Mission.
Constitutional Plebiscite
Submits the proposed presidential constitution to a national plebiscite.
Commissar
Appointed Peoples Commissar for War & Navy
September 19257 historical events
Reform of Religious Orders
Religious orders are suppressed
Interim Presidency
Guzman assumes interim authority during the presidential succession crisis.
Birth of BB King
Birth of BB King
Promulgation of Constitution
Promulgates the Constitution of 1925 and ends the parliamentary constitutional system.
Separation of Church and State
Promulgates the new constitutional order separating church and state.
Government Defence
Kerensky records his position on government defence in exile.
German Cabinet Authorizes Locarno Negotiations
Luther's government authorizes participation in the conference intended to convert the security proposals into formal agreements.
October 1925101 historical events
Resignation from Presidency
Resigns before completing the restored presidential term.
President of Chile
Appointed acting President of Chile after the resignation of Arturo Alessandri.
German Delegation Arrives in Locarno
Luther arrives with Stresemann and the German delegation for the security conference in Locarno.
Belgian Delegation Seeks Western Frontier Security
Vandervelde represents Belgium in negotiations intended to secure its frontier against renewed German aggression.
Opening of Locarno Conference
Briand represents France as the Locarno Conference opens to negotiate a European security settlement.
German Delegation Opens Locarno Conference
Luther leads the German government delegation with Stresemann as the Locarno Conference opens.
First Day German Security Position Presented
Stresemann presents Germany's security priorities as the conference begins formal negotiations.
German Delegation at Locarno
Germany's security proposals culminate in the Locarno treaties.
Locarno Conference Opens for Germany
Germany's security pact proposals result in the Locarno treaties.
Locarno Negotiations
Seven agreements are negotiated at Locarno during October 1925.
Scialoja Represents Italy in Locarno Negotiations
Scialoja represents Italy during the Locarno negotiations before Mussolini joins the conference.
Luther Consults Briand at Ascona
Luther holds an informal discussion with Briand at nearby Ascona during the Locarno negotiations.
Birth of Margaret Thatcher
Birth of Margaret Thatcher, daughter of a grocer
Article Four Breach Referral to League Council
Article Four requires an alleged violation of the pact or Rhineland clauses to be brought before the League Council.
Article Two Belgian-German Non-Aggression
Article Two places the same non-aggression obligation on Belgium and Germany.
Belgian Acceptance of Rhineland Pact
Vandervelde accepts the Rhineland Pact guaranteeing Belgium's frontier with Germany.
Belgian Frontier Included in British Italian Guarantee
Vandervelde secures British and Italian guarantees of the Belgian-German frontier.
Belgian German Arbitration Convention Approved
Vandervelde approves the bilateral arbitration convention governing disputes between Belgium and Germany.
Belgian German Non-Aggression Undertaking Approved
Belgium accepts the mutual undertaking with Germany not to attack, invade or resort to war except under specified exceptions.
Vandervelde Initials Final Protocol
Vandervelde initials the final protocol on behalf of Belgium.
Beneลก Initials Locarno Final Protocol
Beneลก endorses the conference protocol that incorporates Czechoslovakia's separate agreement with Germany.
Czechoslovak Eastern Frontier Outside Western Guarantee
Beneลก accepts that Czechoslovakia's German border is handled through arbitration rather than the five-power Rhineland guarantee.
Czechoslovak German Arbitration Treaty Approved
Beneลก accepts a treaty requiring structured conciliation or adjudication when normal diplomacy cannot resolve a dispute with Germany.
French Czechoslovak Security Relationship Preserved
Beneลก retains French backing for Czechoslovak security while accepting arbitration as the principal Locarno mechanism with Germany.
Article Two Franco-German Non-Aggression
Article Two commits France and Germany not to attack, invade or resort to war against each other except under stated exceptions.
Briand Accepts Arbitration with Germany
France accepts a separate arbitration convention requiring peaceful procedures for disputes with Germany.
Briand Approves Five-Power Guarantee
Briand approves the five-power guarantee linking Germany, Belgium, France, Great Britain and Italy.
French Alliance with Czechoslovakia Preserved
France keeps its separate commitment to assist Czechoslovakia while joining the western Locarno framework.
French Alliance with Poland Preserved
Briand ensures that the western pact does not cancel France's security commitments toward Poland.
Briand Supports League Council Enforcement Role
Briand accepts a central League Council role in determining and responding to breaches of the western guarantee.
French Support for Locarno Disarmament Commitment
Briand joins the final protocol's commitment to cooperate with League efforts toward a general disarmament agreement.
League Decision Exception Preserved
The pact allows action resulting from specified decisions of the League Assembly or Council.
Locarno Final Protocol
Briand joins the other delegates in approving the final protocol and interdependent Locarno agreements.
Luther Initials Locarno Final Protocol
Luther joins the other delegates in initialling the final protocol that links the Locarno agreements together.
Article One Western Territorial Status Quo
Article One guarantees the territorial status quo on Germany's frontiers with France and Belgium.
Article Three Peaceful Settlement Requirement
Article Three requires unresolved German disputes with France and Belgium to be settled through peaceful procedures.
Articles Forty Two and Forty Three Protected
The main pact guarantees observance of Versailles Articles 42 and 43 governing the demilitarized Rhineland.
German Acceptance of Franco-Belgian Western Borders
Stresemann accepts a treaty guaranteeing Germany's existing western boundaries with France and Belgium.
German Acceptance of Rhineland Demilitarization Guarantee
Germany accepts that the Locarno guarantee also covers the Versailles provisions governing the demilitarized Rhineland.
German Approval of Czechoslovak Arbitration Treaty
Stresemann agrees to a separate Czechoslovak dispute procedure based on conciliation and adjudication without guaranteeing the eastern frontier.
German Approval of Peaceful Dispute Settlement
Stresemann accepts compulsory peaceful procedures for disputes with France and Belgium that diplomacy cannot settle.
German Approval of Polish Arbitration Treaty
The German delegation accepts a bilateral mechanism sending unresolved Polish-German legal disputes to arbitration or judicial settlement.
Judicial Decision for Legal Disputes
Disputes involving conflicting claims of legal rights are to be submitted for judicial decision.
Legitimate Defence Exception Defined
The pact permits legitimate defence against aggression or an immediately dangerous flagrant breach of the Rhineland demilitarization clauses.
Stresemann Initials Locarno Final Protocol
Stresemann initials the final protocol and accepts the package of western guarantees and arbitration agreements.
Locarno Opens Germany's League Path
Locarno helps clear the diplomatic path for Germany's eventual admission to the League of Nations.
Birth of Angela Brigid Lansbury
Birth of Angela Brigid Lansbury
Article Eight Treaty Duration Procedure
Article Eight establishes a League Council procedure governing any eventual termination of the pact.
Britain Accepts Immediate Aid after Flagrant Breach
Britain agrees that an unmistakable act of aggression in the demilitarized zone can trigger assistance before a final League ruling.
British Guarantee of Rhineland Pact
Chamberlain commits Britain to guarantee the western frontier settlement negotiated between Germany, France and Belgium.
Chamberlain Initials Final Protocol
Chamberlain initials the final protocol linking the seven Locarno agreements into a single diplomatic settlement.
Chamberlain Supports Arbitration Package
Chamberlain supports the arbitration conventions and treaties that accompany the main Rhineland Pact.
Dominions and India Opt-In Clause
Article Nine states that British dominions and India are not bound unless their governments accept the treaty.
British Support for League Breach Determination
Chamberlain accepts the League Council's role in determining whether a treaty breach has occurred.
British Support for Locarno Settlement
Chamberlain supports the Locarno settlement as a means of strengthening European security and League diplomacy.
British Support for Peaceful Settlement Procedures
Chamberlain supports judicial, conciliation and League procedures for disputes not resolved by ordinary diplomacy.
Conciliation Commission Procedure Established
Other disputes can be submitted to conciliation, with unresolved questions then going to the League Council.
League Article Sixteen Exception Preserved
The pact preserves action taken under Article 16 of the League Covenant as an exception to the non-aggression undertaking.
Italian Guarantee of Belgian-German Frontier
Italy also becomes a guarantor of Belgium's security against a prohibited German attack across their common border.
Italian Guarantee of Franco-German Frontier
Mussolini accepts an Italian obligation to support the settlement fixing the western boundary between France and Germany.
Article Four Guarantor Assistance Obligation
The guarantor powers agree to assist the victim after the League Council determines that a covered violation has occurred.
Italian Approval of Immediate Assistance Clause
Italy accepts emergency action when a clear treaty violation creates an immediate military danger to another signatory.
Italian Approval of League Breach Mechanism
Scialoja accepts the procedures giving the League Council a central role in determining treaty breaches.
Italian Signature of Rhineland Pact
Scialoja signs the Rhineland Pact for Italy, which joins Britain as an external guarantor of the western settlement.
Scialoja Initials Locarno Final Protocol
Scialoja initials the final protocol for Italy at the conclusion of the conference.
French Polish Security Relationship Preserved at Locarno
Skrzyลski leaves Locarno with Poland's bilateral ties to France intact despite the absence of an eastern territorial guarantee.
Polish Eastern Frontier Left Outside Rhineland Guarantee
Skrzyลski fails to obtain the same territorial guarantee for Poland that France and Belgium receive in the west.
Polish German Arbitration Treaty Approved
Skrzyลski approves the arbitration treaty establishing peaceful procedures for Polish-German disputes.
Skrzyลski Initials Locarno Final Protocol
Skrzyลski approves the conference protocol recording Poland's arbitration settlement and related security arrangements.
Petrich Incident
Bulgaria appeals to the League during the border crisis.
Petrich Incident
Greek troops enter Bulgaria after a border clash.
Death of Adolf Wild von
Death of Adolf Wild von Hohenborn
Coup
Succeeds as Shah of Iran, overthrows the Kajar Dynasty & is proclaimed Shah
Succession
Succeeds as Shah of Iran, overthrows the Kajar Dynasty & is proclaimed Shah
Treaty of Ankara
Turkey & Greece agree territorial staus quo. Turkey & Greece agree naval parity in the eastern Mediterranean
Kuomingtang
Sun dies of cancer and leadership of the Kuomingtang passes to Chiang Kaishek/Jiang Jieshi
Czechoslovak Delegation Joins Locarno Discussions
Beneลก takes part in sessions concerning Czechoslovakia while the principal western powers negotiate the Rhineland Pact.
Briand Accepts British and Italian Guarantors
Briand accepts Britain and Italy as guarantors of the western settlement between France, Belgium and Germany.
French Insistence on Demilitarized Rhineland
Briand insists that the settlement preserve the Versailles restrictions on military forces in the Rhineland.
Doumergue Supports Briand's Western Settlement
Doumergue supports the French government's move toward a negotiated western security settlement.
French Presidency during Locarno Settlement
Doumergue is President while the French government supports Briand's negotiations for the Locarno security settlement.
French Approval of Western Security Pact
The French government supports the five-power western security arrangement negotiated at Locarno.
French Cabinet Supports Locarno Negotiations
Painlevรฉ's government supports Briand's negotiations for guarantees of France's western security.
French Government Backs Mutual Guarantee
Painlevรฉ's cabinet supports the proposed Treaty of Mutual Guarantee covering Germany's western frontiers.
French Support for Rhineland Guarantee
Painlevรฉ's government backs a guarantee of the Franco-German frontier and the Rhineland demilitarized zone.
Painlevรฉ Cabinet Reviews Locarno Compromise
Painlevรฉ's cabinet reviews the compromise balancing French security demands with German reintegration.
Luther Defends Germany's League Position
Luther supports linking the settlement with terms acceptable to Germany as a future League member.
Stresemann Meets Briand on Franco-German Security
Stresemann and Briand negotiate the balance between French security and Germany's return to diplomatic equality.
Stresemann Meets Chamberlain on Guarantee Terms
Stresemann discusses with Chamberlain how Britain can guarantee the western settlement without guaranteeing Germany's eastern borders.
British Guarantee Excludes Eastern Frontiers
Chamberlain avoids extending Britain's automatic guarantee to Germany's eastern borders with Poland and Czechoslovakia.
British Mediation between France and Germany
Chamberlain mediates between French demands for security and German demands for restored diplomatic equality.
British Western Guarantee Principle Accepted
Chamberlain accepts that Britain should guarantee the Franco-German and Belgian-German frontier settlement.
Chamberlain Mediation at Locarno
Chamberlain mediates between French security demands and German revisionist aims during the Locarno negotiations.
Locarno Diplomacy and Nobel Recognition
Chamberlain's mediation at Locarno becomes a major reason for his award of the 1925 Nobel Peace Prize.
London Chosen for Formal Locarno Signing
The delegates choose London for the formal signing, reflecting Chamberlain's central mediating role.
Baldwin Government Approves Locarno Guarantee
Baldwin's government approves Britain's role as guarantor of the western security pact.
Petrich Settlement
Supports League mediation in the Greek-Bulgarian conflict.
Abdication
Has Parliament depose Ahmad Shah Qajar
Abdication
Appointed Regent
Mussolini Joins Final Locarno Negotiations
Mussolini joins the final stage of the Locarno Conference as Italy prepares to become a guarantor power.
Polish Delegation Joins Limited Locarno Sessions
Skrzyลski attends only those conference discussions directly affecting Poland rather than the full western guarantee negotiations.
November 19259 historical events
Transjordan Mandate
The Hadda Agreement established important boundary arrangements between Transjordan and the neighboring territory of Nejd. It helped define the emirateโs eastern and southern relationships during the mandate period.
Asteroid Belgica
Discovers the asteroid later numbered and named 1052 Belgica.
Discovery of 1052 Belgica
Adds a Belgian-named object to the catalogue of minor planets.
Variety
Directs Variete, released in English as Variety.
Unemployment Benefit Disallowed
Challenges issues surrounding the disallowance of unemployment benefit.
Iron and Steel Industry
Contributes to Commons discussion of conditions in the iron and steel industry.
Reichstag Approval of Locarno Treaties
The Reichstag approves the Locarno treaties, allowing the German government to proceed toward ratification.
Copley Medal
Awarded the Royal Society's Copley Medal for relativity and contributions to quantum theory.
German Presidency Reviews Locarno Agreements
Hindenburg reviews the Locarno settlement as the government prepares the agreements for parliamentary approval.
December 192532 historical events
Belgian Signature at London Ceremony
Vandervelde adds Belgium's signature at the London ceremony, completing its participation in the Rhineland security system.
Briand Travels to London for Formal Signing
Briand joins the other principal delegates in London for the formal signing of the Locarno agreements.
French Signature of Rhineland Pact in London
Briand formally signs the Rhineland Pact on behalf of France at the London ceremony.
Formal London Signature of Locarno Agreements
Stresemann signs the Locarno agreements in London at the formal ceremony on 1 December 1925.
London Locarno Signing
The Locarno agreements are formally signed in London.
British Signature of Treaty of Mutual Guarantee
Chamberlain signs in London as Britain's plenipotentiary, formally binding the government to the western guarantee.
London Signing Ceremony for Locarno
Chamberlain attends the formal London signing ceremony for the agreements negotiated at Locarno.
Baldwin Supports London Signature Ceremony
Baldwin supports the formal London signing that completes the agreements negotiated at Locarno.
Italian Formal Signature in London
Scialoja formally signs the Locarno instruments for Italy at the London ceremony.
Cortes
Dissolves the Cortes
Mein Kampf", official
Publication of "Mein Kampf", official publication date
Mein Kampf
Publication of "Mein Kampf", official publication date
date
Publication of "Mein Kampf", official publication date
First Svehla Government
The First Svehla Government ends in Prague, concluding this term as Prime Minister of Czechoslovakia.
Second Svehla Government
Begins the Second Svehla Government in Prague and serves as Prime Minister of Czechoslovakia.
Nobel Prize in Literature
Is awarded the Nobel Prize in Literature for humane, idealistic, and sharply satirical writing.
Created Cardinal
Pope Pius XI creates O'Donnell a cardinal while he is serving as Archbishop of Armagh.
Einstein Gas Theory Paper
Submits a paper on Einstein's gas theory that forms part of the immediate intellectual background to his development of wave mechanics.
League of Nations
The League of Nations sets the border between Turkey and Iraq, putting the Mosul region in Iraq rather than Turkey despite the wishes of the local Kurdish population
Mosul Question
The League awards Mosul to Iraq over Turkish claims.
Rule of Kurds
The League of Nations sets the border between Turkey and Iraq, putting the Mosul region in Iraq rather than Turkey despite the wishes of the local Kurdish population
Rule of Mosul
The League of Nations sets the border between Turkey and Iraq, putting the Mosul region in Iraq rather than Turkey despite the wishes of the local Kurdish population
Brussels Line
The League of Nations supports the "Brussels Line", the border between Turkey and Iraq
Mosul Question
Turkey rejects but later accepts the League-backed Mosul decision.
Alliance Maustafa Kemal Ataturk and Russia
Establishes a political & economic alliance with Russia
Trial
Found guilty of conduct prejudicial to the good of the armed services
Prime Minister's Statement
Responds in the Commons to the Prime Ministerโs statement at the end of the parliamentary year.
President of Chile
Takes office following the first direct presidential election under the 1925 Constitution.
Government Ends
His government ends in Helsinki, concluding this term as Prime Minister of Finland.
Prime Minister
Takes office as Prime Minister of Finland and forms a government in Helsinki.
Succession
Succeeds as Shah of Iran
Fourteenth Party Congress Delegate
Attends the Fourteenth Communist Party Congress as a non-voting delegate.
Reballion of Rebels in Kurdistan
Supresses a rebellion in Kurdistan
Suppression of Khost Rebellion
Government forces defeat the Khost rebellion after prolonged fighting.
President of Albania
Appointed President of Albania
Gold Standard
Australia resumes a gold-linked parity through sterling following Britain's restoration.
Erdbaumechanik Published
Publishes a systematic treatment of soil mechanics based on effective stress.
Foundation of Soil Mechanics
Establishes modern geotechnical engineering as a quantitative discipline.
de Broglie Matter Waves Influence
Studies Louis de Broglie's matter-wave ideas and recognizes that they may provide a new route to understanding atomic structure.
Electron State Restriction
Explains atomic shell structure through a fundamental quantum restriction.
Pauli Exclusion Principle
Formulates the rule preventing identical electrons from sharing one quantum state.
Major
Appointed Major in the General Staff Academy
Burial
Given a state funeral
Death of Franz Conrad von Hotzendorf
Death of Conrad Franz Freiherr von Hotzendorf
Cosmology
Lemaitre studies relativistic cosmology and begins work that will connect general relativity to cosmic expansion
Kemmerer Mission
Receives the Kemmerer financial mission, whose recommendations influence banking, currency and fiscal reforms.
Recall from Exile
Is recalled after a new military movement removes the January governing junta.
Restoration to Presidency
Resumes presidential authority and prepares constitutional reform.
Coup
A military coup results in the recall of Alessandri
President of China
Appointed President of China, northern Government
Chinese Communist Party (CCP)
Appointed Member of Chinese Communist Party
Congress of Communist Party, 4th
4th Congress of the Communist Party
Kuomingtang
Sun dies of cancer and leadership of the Kuomingtang passes to Chiang Kaishek/Jiang Jieshi
Editor
Appointed Chief Editor of the Political Week, official paper of the Kuomingtang
General
Emerges as a leading National Revolutionary Army commander after Sun Yat-senโs death and the Eastern Expeditions.
Minister of Public Works
Appointed Minister of Public Works
Constitution of Cuba
Gerardo Machado y Morales, having been elected President, suspends the constitution
President of Cuba
Gerardo Machado y Morales, having been elected President, suspends the constitution. Appointed President of Cuba, 1st term
Public Works
Machado institutes a major program of public works
The Trial", posthumous
Publication of "The Trial", posthumous publication
The Trial
Publication of "The Trial", posthumous publication
Minister of Great Britain
Appointed Minister of Great Britain
Minister of Justice
Appointed Minister of Justice
Minister of Public Works
Appointed Minister of Public Works
Minister of War
Appointed Minister of War, 2nd term
Prime Minister of France
Appointed Prime Minister of France, 2nd term
Central Committee
Appointed Member of Communist Party Central Committee
Party Leader
Elected as a deputy, then becomes leader of the Socialist Party
Doctorate
Receives a doctorate for research on polonium alpha rays.
Auger Electron Effect
Identifies radiationless atomic relaxation in which energy ejects a secondary electron, now called an Auger electron.
Secretariat
Appointed Member of Marshal Petains Secretariat
The Joyless Street
Directs Die freudlose Gasse, known in English as The Joyless Street.
President of Germany
Appointed President of Germany, acting
Belgian Arbitration Convention
Belgium and Germany establish their own Locarno arbitration procedure.
Belgian Frontier Confirmed
Locarno leaves the German-Belgian boundary fixed on the Versailles line.
Belgian Non-Aggression
The Belgian element of Locarno binds Germany against initiating war on Belgium, apart from self-defence.
British Guarantee
Britain assumes responsibility for guaranteeing the Rhineland security arrangement.
Czechoslovak Arbitration Treaty
A further treaty provides arbitration for disputes between Germany and Czechoslovakia.
Demilitarized Zone
The Rhineland Pact confirms the demilitarized zone attached to Germany's western settlement.
Five-Power Mutual Guarantee
Germany, France and Belgium accept non-aggression obligations while Britain and Italy become guarantors of the western settlement.
Flagrant Breach Guarantee
Britain and Italy may intervene without waiting for a League ruling after a flagrant treaty breach.
Four Arbitration Agreements
Germany accepts arbitration agreements with France and Belgium and arbitration treaties with Poland and Czechoslovakia.
French Arbitration Convention
A separate convention creates an arbitration route for German disputes with France.
French Frontier Confirmed
Germany accepts the Versailles-defined western boundary with France within the Rhineland settlement.
French Non-Aggression
France receives a parallel German undertaking at Locarno limiting resort to war to defensive circumstances.
German French Belgian Non-Aggression
Germany agrees not to attack France or Belgium except in the limited circumstances allowed by the Rhineland Pact.
Italian Guarantee
Italy joins the external guarantee mechanism backing the Rhineland Pact.
League Council Role
The League Council is required to rule on alleged breaches of the guarantee treaty.
Locarno Breach Procedure
The pact defines how the League Council and guarantor powers should respond to treaty violations.
Mutual Guarantee Treaty
The Locarno settlement includes the Treaty of Mutual Guarantee.
Permanent Court Referral
Locarno arbitration arrangements allow disputes to be referred to the Permanent Court of International Justice.
Polish Arbitration Treaty
Polish-German disputes are placed under an arbitration treaty.
Rhineland Pact
The Treaty of Mutual Guarantee becomes widely known as the Rhineland Pact.
Rhineland Status Quo Guarantee
The western settlement guarantees the Franco-German and Belgian-German frontiers and the Rhineland demilitarized zone.
Self Defence Exception
The mutual guarantee settlement permits force only in legitimate self-defence.
Seven Locarno Agreements
The Locarno settlement consists of seven negotiated agreements.
Versailles Articles 42 and 43 Confirmed
The Locarno settlement confirms the continuing force of Versailles Articles 42 and 43 concerning the demilitarized Rhineland.
Versailles Western Frontiers
Locarno confirms Germany's western frontiers created by the Versailles settlement.
Western Frontier Status Quo
The settlement guarantees Germany's western boundaries with France and Belgium as fixed under the Versailles system.
Western Security Pact
Advances proposals for a western European security pact.
Election
Wins 13.7 million votes to Hindenburgs 14.6 million. Stands as President but defeated by Hindenburg
Frankfurt Habilitation
Horkheimer completes his habilitation and begins teaching at Frankfurt.
Death of Gottlob Frege
Gottlob Frege dies in Bad Kleinen.
Election
Stands as President but is defeated by Hindenburg, wins 1.9 million votes
Voelkischer Beobachter
The Beobachter resumes publication
Business Manager
Appointed Business Manager of the Rhineland-North Gau
SS
The Stabswache is renamed as the Schutzstaffel, abbreviated SS
Stabswache
The Stabswache is renamed as the Schutzstaffel, abbreviated SS
Editor
Appointed Gauleiter of the Southern Rhineland district and editor of a virulently anti-Semitic Nazi newspaper, the Westdeutsche Beobachter
Westdeutsche Beobachter
Appointed Gauleiter of the Southern Rhineland district and editor of a virulently anti-Semitic Nazi newspaper, the Westdeutsche Beobachter
Gauleiter
Appointed Gauleiter of Lower Bavaria
Gauleiter
Appointed Party Gauleiter by Hitler
Gauleiter
Appointed Gauleiter of the Southern Rhineland district and editor of a virulently anti-Semitic Nazi newspaper, the Westdeutsche Beobachter
Propaganda
Appointed Propaganda Leader of the Nazis
NSDAP
Joins the Thuringian Nazi Party, after serving a prison sentence for murder
Mein Kampf
Publication of "Mein Kampf", 1st part is dictated to Rudolf Hess in Landau prison
Election
Wins 8 million votes
Nobel Prize
Receives the Nobel Prize in Chemistry for demonstrating the heterogeneous nature of colloidal solutions and developing methods fundamental to modern colloid chemistry.
Discovery of Rhenium
Co-discovers rhenium by X-ray spectroscopy and chemical separation, filling one of the remaining gaps in the periodic table among the transition metals.
BKS Statistical Conservation Challenged by Photon Picture
Einstein continued to favour exact energy and momentum conservation in individual radiation processes rather than the merely statistical conservation proposed by the Bohr-Kramers-Slater approach.
Einstein Extends Radiation Duality Analogy to Matter
Einstein drew an analogy between the wave-particle duality he had identified for radiation and the emerging wave description of material particles, reinforcing the broader quantum duality concept.
League Enforcement Mechanism
The League Council is central to investigating breaches and recommending action under the mutual guarantee system.
Chief of Army Training
Appointed Chief of Army Training by General Hans von Seeckt
Reichsfuhrer
Appointed Reichsfiuhrer-SS
Seventh Bavarian Division Staff Service
Jodl begins extended staff service with the 7th Bavarian Division in Munich.
Those Barren Leaves
Publication of "Those Barren Leaves"
Mrs Dalloway
Publication of "Mrs Dalloway"
Threadneedle Street Reconstruction Begins
Herbert Baker begins the major reconstruction of the Bank of England's Threadneedle Street headquarters, replacing most of John Soane's earlier building.
Gold Standard
Norman supports restoration of sterling's pre-war gold parity despite concerns about competitiveness.
Defection
Returns to the Conservatives because the Liberal Party had supported Ramsay MacDonald
Strike
A subsidy of 10M is agreed by the Cabinet for 9 months to prepare for a coal strike
Invasion of Poland
"No British Government will risk the bones of a British grenadier"
Treaty of Mutual Guarantee
The Council of the League is required to rule on alleged breaches of the Treaty & Britain & Italy are, as guarantors, only obliged to intervene without awaiting such a decision in the event of a flagrant contravention
Conservatives
Rejoins the Conservative Party after 21 years absence
Secretary of State for Dominions
Appointed Secretary for the Dominions
Lord President
Appointed Lord President of the Council, the "elder statesman" of Baldwins Cabinet
Speech
Maiden Speech, supports the budget introducing contributory pensions & reduced inc tax
Peerage
Created Baron Irwin
Viceroy
Appointed Viceroy of India
Governor
Appointed Governor General of Ceylon
Governor
Appointed Governor General of Australia
Whip
Appointed Whip of the Labour Party, 3rd term
Lords Opposition
Appointed Head of the Lords Opposition
Cadman Becomes Vice-Chairman
Becomes vice-chairman and gains greater responsibility for Anglo-Persian strategy and organization.
Exhibition of Wembley
Appointed Chairman of the Committee for the Wembley Exhibition
The ABC of Relativity
Publication of "The ABC of Relativity"
Politicians and the Press
Publication of "Politicians & the Press". Publication of " Politicians the Press"
Politicians the Press
Publication of "Politicians & the Press". Publication of " Politicians the Press"
Death of David Bevan
Loses his father after illness linked to mining work.
New College Oxford
Enters New College, Oxford, to study classical subjects and philosophy.
Earldom and Garter
Is created an Earl and becomes a Knight of the Garter.
Peerage
Created Earl & Knight of the Garter
Quote
"The moral is obvious: it is that great armaments lead inevitably to war"
Discovery of Sun
The preponderance of hydrogen in the Sun is confirmed
Dixie Dean Arrives From Tranmere
Dixie Dean joins Everton from Tranmere Rovers and begins a prolific goalscoring career that becomes central to the clubโs history.
Decisive Goal Against Cardiff
Tunstall scored the only goal of the FA Cup final as Sheffield United defeated Cardiff City to lift their fourth trophy in the competition.
1925 FA Cup Final Clean Sheet
Hufton kept a clean sheet against Cardiff City at Wembley, providing Sheffield United with the defensive foundation for its 1-0 cup final win.
Facilitates Germany's membership into the League of Nations
Facilitates Germany's membership into the League of Nations
League of Nations
The Council of the League is required to rule on alleged breaches of the Treaty and Britain and Italy are, as guarantors, only obliged to intervene without awaiting such a decision in the event of a flagrant contravention
Returns to RAF
Rejoins the Royal Air Force after service in the Royal Tank Corps.
Peerage
Created Earl Jellicoe, 1st
Death of Surendranath Banerjea
Death of Surendranath Banerjea
Nobel Prize
Winner of the Nobel Prize for Literature
Award
Winner of the Dial Prize for poetry
General
Appointed Secretary General of the Fascist Party
Secretary General
Appointed Secretary General of the Fascist Party
Resignation of Vittorio Emmanuele Orlando
Resigns after the Fascist electoral fraud
Constitution of Italy
In early 1925, Mussolini drops all pretense of democracy and sets up a total dictatorship, from that point onward, the PNF is effectively the only legally permitted party in the country
PNF
In early 1925, Mussolini drops all pretense of democracy and sets up a total dictatorship, from that point onward, the PNF is effectively the only legally permitted party in the country
Quantum Gas Research
Investigates quantum gases and statistical problems that directly precede his formulation of Fermi statistics.
Chief of Staff
Appointed Chief-of General Staff
Arrest of Luigi Attilio Capello
Arrested for involvement in a plot against Mussolini
Ken Nan Jo Nan", establishes his reputation
Publication of "Ken Nan Jo Nan", establishes his reputation
Ken Nan Jo Nan
Publication of "Ken Nan Jo Nan", establishes his reputation
Lieutenant Colonel
Appointed Lieutenant Colonel
Aqaba Incorporated
Aqaba became part of Transjordan following changes in control of the Hejaz region, giving Abdullah's emirate access to the Red Sea.
Hadda Boundary Agreement
An agreement between Transjordan and Najd defined significant portions of their frontier and sought to reduce disputes along the emirate's southern and eastern approaches.
Transjordan Mandate
Transjordanโs government worked to extend effective administration toward its southern frontier as regional boundaries were negotiated. The task linked local security to the diplomatic settlement of relations with neighboring Arabian territories.
Birth of Pol Pot
Birth of Pol Pot, son of a peasant family
Minister of Finance
Appointed Finance Minister, 2nd term
Prime Minister of Netherlands, The
Appointed Prime Minister of The Netherlands, 1st term
Electron Spin Hypothesis
With George Uhlenbeck, proposes that the electron possesses intrinsic angular momentum called spin.
Electron Spin Hypothesis
With Samuel Goudsmit, proposes that the electron possesses an intrinsic angular momentum called spin.
Armenian Refugees
Expands League refugee work to Armenian refugees.
Acta Astronomica Founded
Founds Acta Astronomica as an international research journal.
Polish Astronomy Journal
Creates a durable publication forum for Polish and international astronomy.
Radium Institute Warsaw
Lays a foundation stone for a Warsaw radium institute.
President of Portugal
Appointed President of Portugal, 2nd term
Exile of Carol II
Exiled for scandalous domestic life
First Symphony
Completion of the "First Symphony"
Tsement
Publication of "Tsement"
Dialectical Materialism and Science
Writes Dialectical Materialism and Science, discussing the relationship between Marxist philosophy and scientific inquiry.
Lenin Book
Publishes a book on Lenin that combines political portraiture with recollections of revolutionary collaboration.
Comintern
Stalin upholds the thesis of "socialism in one country", detailed by Nikolai Bukharin
Chairman
Appointed Chairman of the Communist International, Comintern
Comintern
After the death of Lenin there is a shift in the Cominterns focus from world revolution towards a defence of the Soviet state paerticularly when Joseph Stalin takes power and upholds "socialism in one country", detailed by Nikolai Bukharin in his brochure "Can We Build Socialism in One Country in the Absence of the Victory of the West-European Proletariat?". 1st to use the expression, "socialism in one country"
Comintern
Appointed Chairman of the Communist International, Comintern
Socialism In One Country
1st to use the expression, "socialism in one country"
Socialism in One Country
After the death of Lenin there is a shift in the Cominterns focus from world revolution towards a defence of the Soviet state paerticularly when Joseph Stalin takes power and upholds "socialism in one country", detailed by Nikolai Bukharin in his brochure "Can We Build Socialism in One Country in the Absence of the Victory of the West-European Proletariat?"
Commissar
Appointed Commissar
Petrovo-Marinsky Party Secretary
Becomes party secretary of the Petrovo-Marinsky district near Stalino.
Comintern
The period up to 1928, is known as the "Second Period", mirroring the shift in the USSR from war communism to the New Economic Policy. Stalin upholds the thesis of "socialism in one country", detailed by Nikolai Bukharin
Dismissal
Stalins "Socialism in one country" conflicts with Trotskys "Permanent Revolution". Removes Trotsky as Commissar of War
Economy of Russia
Gosplans work is coordinated with the USSR Central Statistical Directorate, the Peoples Commissariat of Finance, and the Supreme Soviet of the National Economy (Vesenkha), and later with the State Bank (Gosbank) and State Supply Committee (Gossnab)
Gosplan
Gosplans work is coordinated with the USSR Central Statistical Directorate, the Peoples Commissariat of Finance, and the Supreme Soviet of the National Economy (Vesenkha), and later with the State Bank (Gosbank) and State Supply Committee (Gossnab). During 1925 Gosplan starts to create annual economic plans, known as "control numbers"
Socialism In One Country
Stalin upholds the thesis of "socialism in one country", detailed by Nikolai Bukharin
Politburo
Appointed Member of Politburo
Comintern
Within weeks of the Congress, Stalin wrestled control of the Leningrad party organisation and Government from Zinoviev and had him dismissed from all regional posts, leaving only the Comintern as a potential power base for Zinoviev
Congress of Communist Party, 14th
With only the Leningrad delegation behind them, Zinoviev and Kamenev found themselves in a tiny minority and were soundly defeated.
Congress of Communist Party, 14th
Within weeks of the Congress, Stalin wrestled control of the Leningrad party organisation and Government from Zinoviev and had him dismissed from all regional posts, leaving only the Comintern as a potential power base for Zinoviev
Congress of Communist Party, 14th
Zinoviev was re-elected to the Politburo, but his ally Kamenev was demoted from a full member to a non-voting member and Sokolnikov was dropped altogether, while Stalin had more of his allies elected to the Politburo.
Triumvirate
Zinoviev and Kamenev allied with Lenins widow, Nadezhda Krupskaya, and Grigory Sokolnikov, the Soviet Commissar of Finance and non-voting Politburo member. With Trotsky finally on the sidelines, the Zinoviev-Kamenev-Stalin triumvirate began to crumble in early 1925. With only the Leningrad delegation behind them, Zinoviev and Kamenev found themselves in a tiny minority and were soundly defeated
Comintern
Within weeks of the Congress, Stalin wrestled control of the Leningrad party organisation and Government from Zinoviev and had him dismissed from all regional posts, leaving only the Comintern as a potential power base for Zinoviev
Congress of Communist Party, 14th
Within weeks of the Congress, Stalin wrestled control of the Leningrad party organisation and Government from Zinoviev and had him dismissed from all regional posts, leaving only the Comintern as a potential power base for Zinoviev.
Congress of Communist Party, 14th
Zinoviev was re-elected to the Politburo, but his ally Kamenev was demoted from a full member to a non-voting member and Sokolnikov was dropped altogether, while Stalin had more of his allies elected to the Politburo.
Politburo
Zinoviev was re-elected to the Politburo, but his ally Kamenev was demoted from a full member to a non-voting member and Sokolnikov was dropped altogether, while Stalin had more of his allies elected to the Politburo
Congress of Communist Party, 14th
Zinoviev was re-elected to the Politburo, but his ally Kamenev was demoted from a full member to a non-voting member and Sokolnikov was dropped altogether, while Stalin had more of his allies elected to the Politburo
Memoir Work
Develops memoirs and political arguments about 1917.
Where Is Britain Going
Publishes Where Is Britain Going, analyzing British politics and the prospects for working-class struggle.
Capture of Don Basin
Captures the Don Basin from the Ukraine
Capture of Kuban
Captures the Kuban from the Ukraine
Siege of Jeddah
Directs the siege that ends Hashemite rule in Jeddah.
Siege of Jeddah
Supports negotiations and operations leading to Jeddah's surrender.
Autonomy Campaign
Presses for Slovak autonomy within Czechoslovakia.
Gold Standard
South Africa restores gold convertibility after sterling returns to the pre-war parity.
Primary School at Qunu
Attends primary school near Qunu.
Receives the Name Nelson
Teacher Miss Mdingane gives Rolihlahla the name Nelson.
Saint Barnabas Bell Tower Completed
Completes the Saint Barnabas bell tower, the only Sagrada Familia tower finished during his lifetime.
Professor
Appointed Professor of Philosophy at the University of Neuchatel
Succession
Succeeds as King of Thailand
Birth of Rama VIII
Birth of Rama VIII
Birth of Bulent Ecevit
Birth of Bulent Ecevit
In Our Time
Publication of "In Our Time"
The Great Gatsby
Publication of "The Great Gatsby"
Arrowsmith
Publication of "Arrowsmith"
An American Tragedy
Publication of "An American Tragedy"
Grand Ole Opry
Grand Ole Opry, Nashville, Tennessee, begins Saturday night radio broadcasts featuring regional music, helps fuse Southeastern and Western styles, creating country and western genre
Birth of Robert Francis Kennedy
Birth of Robert Francis Kennedy
Nobel Peace Prize
Shares the 1925 Nobel Peace Prize for his work on German reparations.
Nobel Prize
Shares the 1925 Nobel Peace Prize for his work on the Dawes Plan.
Senate Rules
Campaigns for Senate rules changes to curb filibusters and procedural delay.
NGC 6822 as a Remote Stellar System
Hubble publishes his major study of NGC 6822, resolving stellar populations and using variable stars to demonstrate that the object is a remote stellar system beyond the Milky Way.
Hebrew University Administrative Council
Joins the administrative council of the Hebrew University of Jerusalem.
Quantum Mechanics Critique Begins
Engages critically with the emerging matrix and wave formulations of quantum mechanics.
Second Quantum Gas Paper
Publishes further work on the quantum theory of the ideal monatomic gas.
South America Lecture Tour
Tours Argentina, Uruguay and Brazil, giving lectures and meeting scientific and civic audiences.
Unified Gravitation and Electromagnetism Paper
Publishes a unified field theory of gravitation and electricity, beginning a long programme to extend relativity into a single classical field framework.
Major General
Appointed Major General
Political Activism Begins
Begins anti-colonial activity as a student in Hue
New Vietnam Revolutionary Party
a non-communist revolutionary party in Vietnams early independence movement founded by Nguyen Th Minh Khai
Vietnamese Revolutionary Youth League
During 1925-1927, the Guangzhou headquarters operated as the Central Committee and the directing centre for their underground revolutionary movements in Vietnam.
Vietnamese Revolutionary Youth League
Founds the Vietnamese Revolutionary Youth League, considered as the first truly Marxist organization in Indochina and the beginning of Vietnamese Communism.
Vietnamese Revolutionary Youth League
Preparing the prominent leadership for the Communist Party of Vietnam and the Vietnamese Revolution.
Vietnamese Revolutionary Youth League
With the support of Chinese Communist Party and the Kuomingtang Left, during the period of 1925-1927, the Vietnamese Revolutionary Youth League managed to educate and train a considerable number of Marxist-Leninist revolutionaries.
The Professors House
Cather published The Professor's House, a novel exploring disillusionment and memory.
Christina Alberta Father
Wells published Christina Alberta's Father, a novel of family and social change.
Books and Characters
Strachey published Books and Characters, collecting literary essays and reviews.
Studies with Martin Heidegger
Arendt studied with Martin Heidegger and became interested in existential philosophy.