Peace! Land! Bread! This was the battle cry of the 1917 October Revolution (old calendar) that changed the history of Russia and indeed the entire world. Since the time of Ivan the Terrible, the tsars concentrated on centralization of their power and control. The most common way of doing this was to take power away from the nobility, appeasing them by giving them dominion over their land and workers. This soon developed into the oppressive, slave-style condition known as serfdom.