September 13

1851: Walter Reed, after whom the Walter Reed Hospital is named, was born. 1857: Milton Snavely Hershey of chocolate fame was born. 1898: Hannibal Goodwin patented celluloid photographic film, which is used to make movies. 1899: Henry Bliss became the first automobile accident fatality after stepping off a trolley in New York City. 1922: 136.4 °F (58 °C), the world's highest shade temperature was recorded 25 miles south of Tripoli, Libya. 1937: Polaroid Corporation was founded. 1945: Cunningham and Werner first isolated a microscopic amount of americium (Am, 95). 1956: IBM introduced the 350 RAMAC hard disk drive (HDD). 1961: An unmanned Mercury (MA-4) capsule was orbited and recovered by NASA in a test for thefirst manned flight.  1970: The Concorde SST landed for first time at Heathrow airport. 1977: The first diesel automobiles introduced by General Motors. 1985: The first anti-satellite intercept test took place when a weapon launched from an F–15 destroyed a satellite orbiting at a speed of 17,500 miles per hour approximately 290 miles above Earth. 2001: Airports closed after the terrorist attacks on 9-11 began reopening.