How old was Ferdinand Magellan when he became a page at the Portuguese court? Why did he give up his Portuguese nationality and move to Spain? Who was Henry the Navigator? The 'Groundbreakers' series explores the lives of pioneering men and women–people whose achievements and discoveries have had a lasting impact on our world. Each book tells about the experiences that inspired these amazing individuals to think in new ways and discusses how the environment they lived in affected their work. Information on their supporters, colleagues, and rivals adds to the story. Finally, a look at the person's legacy shows how their achievements and discoveries continue to affect people today.