The importance of February Revolution can be summed up as follows :
1-It led to formation of a provisional government under prime minister Krenskii was formed
2-The Bolshevik leader Vladmir Lenin returned to Russia from his exile in April .Lenin put up three demands [Lenin's April theses] before the government they were;
3-Trade union and other soldier's committees were formed.
4-The provisional government powers were reduced and the Bolshevik influence increased
5-The workers movement spread in all the factories and industries of Russia.
Regards,