Answer:
In Russia, efforts to build communism began after Tsar Nicholas II lost his power during the February Revolution, which started in 1917, and ended with the dissolution of the USSR in 1991.
Step-by-step explanation:
What is communism?
In its modern form, communism emerged from the socialist movement in 19th-century Europe. As the Industrial Revolution advanced, socialist critics, blamed capitalism for the misery of the proletariat—a new class of urban factory workers who labored under often-hazardous conditions.
In Russia, efforts to build communism began after Tsar Nicholas II lost his power during the February Revolution, which started in 1917, and ended with the dissolution of the USSR in 1991.