Man's quest for knowledge — to know the unknown and explore the undiscovered — has taken him places. Thanks to his insatiable appetite for wisdom and never-ending curiosity, today we know of things, places, and phenomenon erstwhile unknown to men. It is to this fine lot of inventors and discoverers that we owe our enlightenment to. Talking about pioneers, America has been lucky enough to home a world of famous inventors and discoverers who have staked claims to the loftiest discoveries and inventions of the land. From Alexander Graham Bell and George Eastman to Thomas Alva Edison and Henry Ford and from Neil Armstrong and Richard Byrd to William Clark and Matthew Henson, the world has seen, known and lauded a gamut of enterprising Americans who enlightened the world with their findings. It is because of them that the world is a much better place today. We look at the timeline, trivia, and interesting facts on some of the most famous American inventors and discoverers in the biographies below.