Thomas Alva Edison is an unparalleled figure in the history ... lessons informally at telegraph offices along his route. As he learned to operate a telegraph, Edison also expanded his technical ...

Thomas Edison, the autodidactic telegraph operator turned entrepreneur, is often considered the greatest inventor of all time, while Nikola Tesla, wh ...

Hello, and welcome back to This Week in History! Writing this column always feels like an adventure, especially after returning from nearly a two-month break.