Taoiseach of Ireland
Succeeds Sean Lemass as Taoiseach.
Role range: 1966-1973
Historical biography archive · Updated 2026-11-03
Jack Lynch Biography and Timeline
Follow Jack Lynch through 16 dated historical records for Ireland.
Jack Lynch, historical timeline
A chronological timeline drawn from matching World History Database records.
16Distinct records
1 of 1Page
1966–1979Years on this page
1966
Prime Minister of Ireland
Appointed Prime Minister of Ireland, 1st term
Role range: 1966-1973
1972
Treaty of Accession
Signs Ireland's Treaty of Accession to the European Communities in Brussels.
Role range: 1972-1973 – 1966-1973
EEC Membership Referendum
Welcomes the referendum result in which Irish voters strongly approve membership of the European Communities.
Role range: 1966-1973
Third Constitutional Amendment
Leads the government when the constitutional amendment permitting European Communities membership is signed.
Role range: 1966-1973
Treaty of Accession
Leads Ireland when completion of accession-treaty ratification is formally notified.
Role range: 1972-1973 – 1966-1973
1973
Ireland Joins European Communities
Heads the government when Ireland becomes a member of the European Communities.
Role range: 1966-1973
European Communities Membership
Leads Ireland as membership of the European Communities formally begins.
Role range: 1966-1973
Treaty of Accession
Leads Ireland as the accession treaty becomes effective and European Communities membership starts.
Role range: 1972-1973 – 1966-1973
1977
Return as Taoiseach
Returns to office as Taoiseach after Fianna Fail's general election victory.
Role range: 1977-1979
1978
Bremen European Council
Represents Ireland as leaders develop plans for a European Monetary System.
Role range: 1977-1979
1979
European Monetary System Launch
Heads the government when Ireland joins the new European Monetary System.
Role range: 1977-1979
Treaty of Accession
Lynch adds Ireland's signature to the treaty admitting Greece to the European Communities.
Role range: 1979-1981 – 1977-1979
First Direct European Elections
Heads the government when Irish voters participate in the first direct European Parliament elections.
Role range: 1977-1979
Second Irish EEC Presidency
Lynch returns Ireland to the Council chair as the second Irish Community Presidency begins.
Role range: 1977-1979
Dublin European Council
Hosts the European Council as leaders debate the United Kingdom's Community budget contribution.
Role range: 1977-1979
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.