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Day in Engineering History Archive - July 20 | ||||||
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Note: These historical tidbits have been collected from various sources, mostly on the Internet.
As detailed in
this article, there is a lot of
wrong information that is repeated hundreds of times because most websites do not validate with
authoritative sources. On RF Cafe, events with hyperlinks
have been verified.
Please submit significant
historical events and dates for inclusion in these lists. I will be glad to include your name and
birthday. Please do not submit your death date ;-)
A couple years ago, I began commemorating the birthdays of notable people and events with
special
RF Cafe logos. Where available, I like to use images from postage stamps from the country where
the person or event occurred.
July 20  Today is Space Exploration Day. 1865: The Patent Act of 1865 required that patent fees to be turned over to the U.S. Treasury. 1937: Radio pioneer Guglielmo Marconi died. 1942: The first unit of the WACs (Women's Army Corps) began basic training. 1960: The submerged USS George Washington off the coast of Cape Canaveral, FL, executed the first test launch of a pair of Polaris missile from a submarine at sea. 1969: At 4:18 EDT, the Apollo 11 lunar module landed at the Sea of Tranquility, and later astronauts Neil Armstrong and Edwin "Buzz" Aldrin became the first men to walk on the moon; they left an American flag and a plaque inscribed with, "Here men from the planet Earth first set foot on the Moon--July 1969 A.D.--We came in peace for all mankind." 1976: NASA's Viking I Lander made the first-ever successful landing on Mars. 1995: Inventure Place, home of the National Inventors Hall of Fame, was dedicated in Akron, OH. 1999: After 38 years at the bottom of the Atlantic, the Liberty Bell 7 Mercury capsule was recovered. | ||||||
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