From the Wikipedia page [1]

Khakas Autonomous Oblast was part of the 1934 created Krasnoyarsk Krai within the Russian SFSR, Soviet Union.

Until 1991, Khakas Autonomous Oblast was administratively subordinated to Krasnoyarsk Krai. In July 1991, it was elevated in status to that of a Soviet socialist republic, and in February 1992 it became the Republic of Khakassia.

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