1991 29th June
Luxembourg Monetary Union Negotiations
Advances Ireland's position on convergence and the design of economic and monetary union.
European integration · permanent subject timeline
Bertie Ahern
Irish Taoiseach during treaty reform, enlargement and Lisbon-era negotiations. This page combines historical context with 23 matching records drawn directly from the World History Database EEC archive.
Historical context
Bertie Ahern: overview and significance
What happened?
Bertie Ahern led Irish governments through major EU negotiations, presidencies, enlargement and treaty debates, while Ireland held an increasingly prominent role in European decision-making.
Why was it important?
His records connect national referendum politics with the Union's enlargement and constitutional reform agenda.
World History Database records
Bertie Ahern timeline
The records below are selected from the 936-record EEC and European integration archive and rendered as static HTML in chronological order.
1991
1991 10th December
Maastricht Monetary Union Agreement
Supports the final economic and monetary provisions agreed at Maastricht.
1992
1992 7th February
Irish Treaty Signature
Signs the Treaty on European Union for Ireland as Minister for Finance alongside Gerry Collins.
1992 7th February
Treaty of Maastricht
Signs the Treaty on European Union for Ireland as Minister for Finance.
1992 12th December
Treaty of Maastricht
Works with Community partners as Ireland accepts the Edinburgh solution to the ratification crisis.
1998
1998 22nd May
Amsterdam Treaty Referendum
Welcomes voter approval of the Amsterdam Treaty in Ireland's constitutional referendum.
1999
1999 1st January
Euro Introduced
Heads the government when the euro becomes Ireland's currency for electronic payments and accounting.
1999 1st May
Treaty of Amsterdam Enters into Force
Amsterdam's institutional reforms become legally effective while Ahern leads the Irish government.
2000
2000 23rd March
Lisbon European Council
Represents Ireland as leaders launch the Lisbon strategy for employment, innovation and economic reform.
2001
2001 7th June
First Nice Treaty Referendum
Acknowledges the referendum rejection of the Treaty of Nice, with 53.9 percent voting no.
2002
2002 1st January
Euro Cash Introduction
Heads the government when euro banknotes and coins replace the Irish pound in everyday use.
2002 19th October
Second Nice Treaty Referendum
Irish voters reverse the earlier Nice rejection and approve the treaty by 62.89 percent.
2002 October
Second Nice Treaty Referendum Campaign
Campaigns for approval of the Nice Treaty after European assurances concerning Irish neutrality.
2003
2003 1st February
Treaty of Nice Enters into Force
The Nice Treaty becomes legally effective during Ahern's government, preparing Union institutions for enlargement.
2004
2004 1st January
Sixth Irish EU Presidency
Begins Ireland's sixth Council Presidency with enlargement and constitutional negotiations as central priorities.
2004 1st May
Day of Welcomes
Hosts celebrations welcoming ten new countries during the largest enlargement in European Union history.
2004 18th June
European Constitutional Treaty Agreement
Helps broker unanimous political agreement on the draft Treaty establishing a Constitution for Europe.
2004 29th October
European Constitutional Treaty
Signs the Treaty establishing a Constitution for Europe on behalf of Ireland.
2004 29th October
European Constitutional Treaty
Signs the European Constitutional Treaty for Ireland as Minister for Foreign Affairs.
2007
2007 1st January
Irish Becomes EU Official Language
Heads the government when Irish becomes an official and working language of the European Union.
2007 1st January
Irish Becomes EU Official Language
Serves as Foreign Minister when Irish receives official and working language status in the Union.
2007 13th December
Treaty of Lisbon
Signs the Treaty of Lisbon on behalf of Ireland.
2007 13th December
Treaty of Lisbon
Signs the Treaty of Lisbon for Ireland as Minister for Foreign Affairs.
Editorial provenance
Sources and editorial review
Compiled and edited by World History Database.
Historical context is editorial material; the chronology is generated from World History Database EEC records.
Last reviewed: September 2026.
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