European Coal and Steel Community (1951):
Removed trade barriers in coal, iron, and steel
European Economic Community (1957): Outlined
and took initial steps toward common market
European Community (1967): Expanded to other
industries including atomic energy
Single European Act (1987): Harmonized
regulations, strived for lower barriers
Maastricht Treaty (1991): Set single currency
targets, outlined eventual political union
European Union (1994): Final name change and
reduced barriers further