1903 - Wright Brothers

Dr. Robert Jarvik

1879 - Thomas Alva Edison
http://corporate.britannica.com/press/inventions.html

"No one person started rock 'n' roll. It was a black and white alloy of Fats Domino, Lloyd Price, Ike Turner, Hank Williams, Joe Turner, Louis Jordan, Ray Charles, Little Richard, Jerry Lee Lewis, Chuck Berry, Bo Diddley, Buddy Holly - and Elvis Presley. Presley himself never claimed to have invented rock 'n' roll. He always talked about how much he was influenced by black gospel music and the blues, which he listened to on the radio growing up in Tupelo, Miss. His absorption of these black influences is what allowed him to have a black feel to his music when he entered the Sun Records recording studio 50 years ago." By JACK NEWFIELD | September 21, 2004
http://www.nysun.com/arts/who-really-invented-rock-n-roll/2037/

Henry Ford - 1913
http://corporate.britannica.com/press/inventions.html

Jonas Salk

1845. The Great American Pastime

Isaac Singer

Morse

Don Wetzel - 1968
http://corporate.britannica.com/press/inventions.html

1928 - Otto Frederick Rohwedder
http://corporate.britannica.com/press/inventions.html

Strauss and Davis, 1873

1894 - John Harvey Kellogg
http://corporate.britannica.com/press/inventions.html