Russian Soviet Federative Socialist Republic:

The RSFSR was established on November 7, 1917 (October Revolution) as a sovereign state. The first Constitution was adopted in 1918. In 1922 the Russian SFSR signed the Treaty on the Creation of the USSR.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What event led to the abolishment of the RSFSR?
unanswerable