The Soviet Union has had many different names in different historical periods. Please list the names adopted by the Soviet Union in its development and ask students to briefly introduce their origins.

19 17 after the February revolution, the autocratic rule of the czar was overthrown, and two coexisting regimes emerged, one was the bourgeois provisional government, and the other was the workers and soldiers representing the Soviet government.

19 17 After the October Revolution, the bourgeois provisional government was overthrown and a Soviet of workers and peasants was established, namely Soviet Russia or Soviet Russia.

1922, under the leadership of Lenin, the Soviet Socialist Union was established, namely the Soviet Union.