Thomas Alva Edison is an unparalleled figure in the history of the United States. Born into a middle-class family in the American Midwest during the 1840s and with little formal education, Edison ...

this loyal lieutenant to Thomas Edison was the embodiment of his era: part engineer, part businessman, part Barnum. In 1871, Johnson hired Edison, then a 24-year-old inventor, as a consultant for ...

Edison came up with lots of great inventions and here he stumbles upon an important development in the way people answer the telephone. Today is the 170th anniversary of the birth of one the world ...