Book excerpt: Covering nearly 2500 years, from 28 September 480 BC to 11 September 2001, Days that Changed the World tells the stories of 50 days that truly made history. Included amongst these momentous turning points are: the assassination of Julius Caesar, the Crucifixion of Christ, the first crusade, Columbus making landfall in the Americas, the defeat of the Spanish Armada, Cook's Endeavour departing Plymouth, the fall of the Bastille, Einstein revealing his Theory of Relativity, the first day on the Somme, Little Boy devastating Hiroshima, the Apollo 11 Moon landing and the fall of the Berlin Wall.