<human>:  How did the February Revolution, 1917 start?
<bot>: It started with the assassination of the Tsar, Nicholas II, in March 1917. The Tsar was a member of the Romanov dynasty, and had ruled Russia since 1894. The Romanovs had been the rulers of Russia for 300 years. The Tsar was very unpopular with the people because of his autocratic rule. He had also made some bad decisions, like signing a peace treaty with Germany, which led to the outbreak of World War I. The people were unhappy with the Tsar and his government, and were ready to overthrow him.