The 20th century began with a sense of great optimism. Extraordinary breakthroughs in science and invention promised the dawn of an exciting new world. Yet great developments in technology, travel and a shift in ideologies, made the 20th century one of the most violent and tumultuous in world history. And the most progressive. Including the sinking of the Titanic, and the invention of the first personal computer, Events that Changed the World explores the influences and the minds behind some of the last century's most significant events. Some have changed the way people think, others have changed the course of history and all have chronicled our past. Chapters: Culture and Society Humanity and Liberty Medicine Politics and War Science Space and the Environment Technology