Season 4 Episode
- Season 1 Bouvines, France in danger
- Season 1 Genghis Khan: The Empire of the Steppes
- Season 1 Alexander Becomes Great
- Season 1 Sekigahara, the battle of Samurai
- Season 1 Darwin discovering the world
- Season 1 Chernobyl, a reactor out of control
- Season 1 A bus for Martin Luther King
- Season 1 Confucius and Chinese thought
- Season 1 Andrinople, Rome vs Barbarians
- Season 1 Einstein and the Manhattan Project
- Season 1 Rock, freedom and decibels
- Season 1 Space Conquest, a little trip to the moon
- Season 1 The Internet, the origins of the web
Butterfly Effect - Season 1 Episode 11 Rock, freedom and decibels
6.90 25 minutes Elvis Presley paid $4 to record two songs for his mother and the rest as they say is history. But without Elvis would rock and roll have gone the same route? And how have the many iterations of rock and roll developed and changed our taste and culture since the 1950's?
