The Supreme Council adopted the Declaration of Independence of Belarus on July 27, 1990.

It is widely regarded as the final democratically-elected Parliament of Belarus.

The first round of voting to the Supreme Council was held on 4 March 1990.

As a result, the Belarusian Popular Front opposition faction with 26 deputies was formed.

[1] The successor of the Supreme Soviet of the 12th convocation was the newly elected Supreme Council of the Republic of Belarus of the 13th convocation, which began its work January 9, 1996.