1. 2/14/18 the old style was the julian calendar and the new style was the gregorian calendar. The dates varied all the time so even though it was the same day some calendars read different than others i.e. 25 october/6 November.
2. Collectively the low working-class of people.
3. Years of losing on the battlefield resulted in discontent among the citizens. Some wanted to continue fighting others, the majority, wanted to drop out. This led to the Bolshevik Revolution of 1917. Also known as the October Revolution. It was then that the czar abdicated and ran wanting to avoid the conflict and thus revealing his uselessness. He was later captured and executed along with his family including the now famous Anastasia.
4. Grigori Rasputin was a mysterious healer for the czars son. When the czar left to oversee the war he exerted a powerful influence over the tsarina who ruled in his place. Some say he helped discredit the government to start the revolution.
5. Refer to 3.
6. The Bolsheviks were the majority social democratic party of Russia. Later renamed the communist party. The Soviets were the opposing side to the Bolsheviks. They were made up of peasants, workers, and soldiers. However they were the minority.Sorry I can't help you with more. Hope this helps!