Treaty of Amsterdam
The Treaty of Amsterdam, officially the Treaty of Amsterdam amending the Treaty on European Union, the Treaties establishing the European Communities and certain related acts, was signed on 2 October 1997, and entered into force on 1 May 1999;[1] it made substantial changes to the Treaty of Maastricht, which had been signed in 1992.
Under the Treaty of Amsterdam, member states agreed to transfer certain powers from national governments to the European Parliament across diverse areas, including legislating on immigration, adopting civil and criminal laws, and enacting foreign and security policy (CFSP), as well as implementing institutional changes for expansion as new member nations join the EU.
— Wikipedia
European leaders in Amsterdam, 1997.
