Why was the Czar replaced in the Russian revolution?

Nicholas II was an autocrat, in other words he ruled by himself, no parliament, only advisors and ministers to carry out his orders. Unfortunately for him, and for Russia, he was vain, stupid, overly religious and badly advised.

His downfall began when he lost the 1904 Russo-Japanese War; this led to the 1905 Revolution, which led to the institution of a parliament, the Duma. Nicholas allowed it to meet, and then politically neutered it, robbing it of its authority and powers.

He could have weathered this storm, perhaps, if he hadn't plunged Russia into WWI. The war was a disaster for Russia, and, when the he took personal command of the army - the people blamed him for the way that the war was turning out.

Eventually the resentment turned from anger to hatred and, in February 1917, the women of Petrograd marched on the Winter Palace and a series of strikes broke out. Nicholas sent in the troops, but they sided with the strikers. He came back from the front, but, by the time he got to Petrograd no-one, not even his loyal cossack soldiers supported him, Nicholas abdicated.

He was arrested on charges of treason, and held in various locations until he ended up, with his family in the Ipatiev house in Ekaterinburg in Western Siberia. Here, on July 17 1918 he, along with his entire family and their servants were taken to the basement and executed.

The Russian Empire became the Soviet Union in 1922, so Nicholas was the Tsar of Russia.

See:

http://www.bbc.co.uk/history/historic_figures/nich...

http://www.eyewitnesstohistory.com/nicholas.htm

The Bolsheviks wanted a society based upon the teachings of Karl Marx. They wanted a society without class divisions, where all men were equal, and the existence of a ruling class was not an option.

The initial causes of the revolution were many, including real and perceived injustices, the impact of World War 1, etc, but the underlying political aims of the Bolshevik movement were the elimination of a ruling class and the seizing of the means of production and the apparatus of the state by the working class.

Some Russian people were sick of the Govertment system