Progressive Alliance of Socialists and Democrats

The Progressive Alliance of Socialists and Democrats is the second-largest parliamentary group in the European Parliament. Founded in 1953, it is the oldest European political party, and until 1999 was the largest in the European Parliament. Since then, it has come second in every election.
==Party of European Socialists==
===????–2009===
==Progressive Alliance of Socialists and Democrats==
===2009–present===
Category:Politics
Category:Political parties in the European Parliament
Category:Europe
Category:1953
Category:1950s
Category:Unknown year