Fifth Army Defence Sectors Assigned
Liman von Sanders assigns divisions to protect Bulair, the peninsula and the Asian shore.
Permanent historical records · Updated 2026-11-03
1915 in Germany — Page 2
Explore 106 historical events and records for Germany in 1915.
Historical records for Germany in 1915
Sorted by month and day. Records with no month are shown last. Showing 40 of 106 unique records.
106Unique records
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36Named events on this page
15Named people on this page
13Places on this page
April
May
Battle of Gorlice
Breaks through the Russian lines at Gorlice-Tarnow & destroys the Russian 3rd Army
Capture of Libau
Captures Libau, Russian Baltic port
Sinking of RMS Lusitania
Germany sinks the Cunard liner Lusitania, 1152 lives are lost including 102 Americans
Sinking of RMS Lusitania - Diplomatic Crisis
The sinking intensified diplomatic pressure on Germany because 128 United States citizens were among roughly 1,200 people killed.
June
Blockade of Great Britain
Allied aircraft bombs Karlsruhe in retaliation for German bombing of London
Great Britain Submarine Pressure Context
The blockade context reflects Germany's submarine campaign against shipping approaching the British Isles.
Tenth Army Staff
Following his recovery, Manstein joined the staff of the German Tenth Army under General Max von Gallwitz. He gained experience in the planning and coordination of large military operations.
Field Marshal
Appointed Field Marshal
Field Marshal
Appointed Feild Marshal
Capture of Lvov
Captures Lvov
Manifesto
Signs the manifesto Gebot der Stunde which openly opposes the war aims of the Government
July
Triple Offensive
The German Triple Offensive begins, aiming to destroy the Russian army
Triple Offensive
The Great Retreat is ordered - Russian forces pull back out of Poland (currently part of Russia), taking machinery and equipment with them
Health of Erwin Johannes Eugen Rommel
A 2nd leg wound forces him into hospital
Promotion to Captain
Manstein was promoted to captain during the First World War. His growing responsibilities took him increasingly into staff work rather than regimental command.
August
Ottoman Ninth Division Alerted to Suvla Landing
Kannengiesser receives warning that Allied troops have landed north of Ari Burnu and moves to assess the Suvla threat.
Death of Paul Ehrlich
Death of Paul Ehrlich, Nobel Prize winning bacteriologist
Constitution of Germany
Creates a semi-independent "Congress Poland" ruled by an aristocratic Assembly
Governor
Appointed Military Governor of Poland
Capture of Mount Cosna
Leads a raid which captures Mount Cosna from the Romanians
Diplomatic Mission
Involved in a failed diplomatic mission to Italy, headed by von Bulow
September
After American outrage, Germany officially stops sinking passenger vessels without
After American outrage, Germany officially stops sinking passenger vessels without warning
October
Invasion of Serbia
Begins an Axis assault on Serbia
Capture of Belgrade
Commands the Eleventh Army which helps capture Belgrade
Capture of Belgrade
Captures Belgrade
November
November 4 Covariant Gravity Equations
Einstein presented new gravitational field equations to the Prussian Academy that restored much broader covariance and marked the first of his decisive November 1915 communications.
November 11 Vacuum Field Equations
Einstein refined his field equations under a trace condition and showed how the revised framework could approach fully covariant gravitation in regions outside matter.
Mercury Anomaly Reproduced without Adjustable Parameters
The relativistic Mercury calculation matched the anomalous perihelion advance using the gravitational theory itself rather than introducing an additional planet or an adjustable correction to Newtonian gravity.
November 18 Mercury Advance Calculation
Einstein used the emerging general theory to account for Mercury's unexplained perihelion advance, obtaining the observed residual shift that earlier gravitational models had failed to reproduce.
General Relativity
Hilbert submits a variational treatment of gravitational field equations during the final formulation of general relativity
Capture of Germany
German, Austro-Hungarian and Bulgarian forces push the Serbian army into exile; Serbia falls
November 25 Matter-Coupled Field Equations
Einstein presented the final generally covariant field equations including their coupling to matter, completing the mathematical core of general relativity.
Marriage
Rommel marries Lucie Mollin
Revised Solar Deflection Reaches Full Relativistic Value
With the completed geometric treatment of gravity, Einstein obtained a solar light-deflection prediction approximately twice the value produced by his earlier equivalence-principle calculation.
December
Black Yellow Offensive
After the failure of the Austrian Black Yellow offensive, Germany takes over ultimate control of Austro-Hungarian forces
Zangger Letter Revisits Gravitational Lensing
Einstein mentioned the possibility of gravitational lensing in a letter to Heinrich Zangger, revisiting the double-image effect he had calculated in his 1912 notebook.
Warns the Americans, had better look out
Warns the Americans, "had better look out after this war"
Other events (month unknown)
Assistant Signals Officer
Appointed Assisstant Signals Officer in 4th Army HQ
Assistant Signals Officer
Appointed Assisstant Signals Officer in 4th Army HQ
How these records were prepared
Generated from the World History Database historical_events table. Identical display records are collapsed; descriptions otherwise retain the stored text. Coverage and source quality vary. Check primary and specialist sources before citing individual historical claims.