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The Schengen Agreement
It is an area where people can circulate freely without internal immigration controls -
The Maastricht Treaty
Tranformed to the eu. free movement of goods and services, consumer protection, public health services, equal opportunity treatment -
The Amsterdam Treaty
The european parliament became more powerful in areas such as legislation on immigration -
The Nice Treaty
It reformed institutions so that the EU could function efficiently after expansion. -
The Lisbon Treaty
Aimed to make EU more efficient , more democratic and better able to address global problems, such as climate change.