These guys basically plucked from a handful of "sinful wrongdoers" that they believed were to be punished by their own god, and yet took things into their hands. They'd accuse any woman as of being a witch. A servant girl, a sick old lady married to her servant, a homeless begger. And so forth. They played the game telephone and spread lies about anyone and everyone resulting in innocents dying.
The Berlin conference was convened to divide the land of Africa among the European nations.
Passover. It lasts 7 days and matzo is unleavened bread
It was the "War of the Roses" that was a fight for control of the English throne. The origins of the war are very complex, but in general the Rose families all believed that they had the right to inherit the monarchy.