This document provides an overview of the European Union and European citizenship. It discusses the founding and current member countries of the EU. It outlines some of the objectives of the EU, including promoting political and economic unity in Europe. The document also discusses Portugal's accession to the EU in 1986. It defines European citizenship, established in 1992 by the Maastricht Treaty, and some key rights of EU citizens, such as freedom of movement. Finally, it briefly describes the Erasmus+ program for education and cultural exchange across Europe.