Definition of History of the european union

This article refers to the development of what is now the European Union, and to developments within those countries
which constitute it at the time of, or near to, those events. For wider history of Europe during this period, see links below.

The European Union is a unique geo-political entity covering a large portion of the European continent. It is founded upon numerous treaties and has undergone expansions that has taken it from 6 member states to 27, a majority of states in Europe.