Violence has been used as a political tool for centuries. This video series looks at some of the most infamous terrorist groups to see how terrorism made history and transformed society. Part 1 looks at the history of the most notorious terrorists groups in France, Russia, Europe, Northern Ireland. Part 2 looks at terrorism in the middle of the 20th century when colonialism was in retreat in Africa, Middle East, and modern Europe. Colonies wanted their independence by any means necessary. Part 3 is the story of how terrorists spread thoughout the world especially Cuba, Middle East, and Europe. Part 4 looks at terrorism at the end of the millennium. This is known as the fright decade