Notes

As a young boy, Thomas Alva Edison was fascinated with technology and chemical experiments. Later, his attempt to improve the telegraph led to his first creation, the phonograph, that set the stage for his life of discovery and invention. His incandescent light bulb made him a popular hero, and many dubbed him the Wizard of Menlo Park. Driven by his curiosity and desire to make life easier for everyone, Edison ended up changing the world.