Question

why did russian revolution took place

Answer 1

this took place due to the need for change of government by the radicals, socialists, capitalists
in russia

Answer 2

The Russian Revolution of 1917 involved the collapse of an empire under Tsar Nicholas II and the rise of Marxian socialism under Lenin and his Bolsheviks. It sparked the beginning of a new era in Russia that had effects on countries around the world.