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Day in Engineering History Archive - July 21

Day in Engineering History July 21 Archive - RF CafeJuly 21

Please click here to visit RF Cafe.1875: Mark Twain's "The Adventure of Tom Sawyer" copyright was registered. 1904: The 4,607-mile Trans-Siberian railway was completed after 13 years of work. 1930: The Veterans Administration of the U.S. was established. 1968: Arnold Palmer became the first golfer to make a million dollars in career earnings. 1969: Apollo 11 astronauts Neil Armstrong and Edwin "Buzz" Aldrin blasted off from the moon after 21-1/2 hours on the surface. 1970: The Aswan Dam in Egypt was completed after 18 years of work. 1977: The first shipment of crude oil arrived at the U.S. DoE's Strategic Petroleum Reserve in LA. 1994: Tony Blair became the youngest Labour leader since World War II. 1997: The "USS Constitution," which defended the US during the War of 1812, set sail under its own power for first time in 116 years. 1998: Alan Shepard, America's first man in space and one of only 12 humans who walked on the Moon, died. 1999: After 38 years at the bottom of the Atlantic, the Liberty Bell 7 Mercury capsule was recovered. 2000: An international collaboration of scientists at the Fermi National Accelerator Laboratory announced the first direct evidence for the tau neutrino. 2000: Astronomers at the University of Arizona announced that they had found a 17th moon orbiting Jupiter.

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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. Many 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. Images used in the logos are often from open source websites like Wikipedia, and are specifically credited with a hyperlink back to the source where possible. Fair Use laws permit small samples of copyrighted content.

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