The Vabamu or Vabamu Museum of Occupations and Freedom in Tallinn, Estonia, is located at the corner of Toompea St. and Kaarli Blvd. It was opened on July 1, 2003, and is dedicated to the 1940-1991 period in the history of Estonia, when the country was occupied by the Soviet Union, then Nazi Germany, and then again by the Soviet Union. During most of this time the country was known as the Estonian Soviet Socialist Republic.