Who Was responsible for raising his own guerilla army and attacking the British supply trains ?
The 1917 Russian Revolution was not, as many people suppose, one well organised event in which Tsar Nicholas II was overthrown and Lenin and the Bolsheviks took power. It was a series of events that took place during 1917, which entailed two separate revolutions in February and October (with a great deal of political wranglings inbetween), and which eventually plunged the country into Civil War before leading to the founding of the Communist State.
However, determining the precise beginning and ending to any "period" is often arbitrary, since it has changed over time over the course of history.
A & C; The crusades as a military operation failed. The Holy Roman Empire united only modern day Germany, Italy, and other countries.