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Note: These historical tidbits have been collected from various sources, mostly on the Internet. As detailed in
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.
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.
Today is the Day of
Trinity. 1739: Charles de Cisternay DuFay,
discoverer of positive and negative electricity and repulsion between like charges, died. 1867: Reinforced
concrete was patented by
of France. 1926: The first underwater color photographs appeared in
National Geographic magazine. 1945: The U.S.
detonated the first atomic bomb in a test at the
Trinity test site
in Alamogordo, NM. 1948: The world's first production turboprop aircraft, the
Vickers Viscount, made its maiden flight. 1951: Dan
Bricklin, co-writer of, VisiCalc, the first spreadsheet computer program, was born. 1957: Marine Maj.
John Glenn set a transcontinental
speed record when he flew a jet from CA to NY in 3 hours, 23 minutes and 8 seconds. 1969: Apollo 11 blasted off from Cape Kennedy, FL, and began the first manned mission to land on the
moon. 1979: Saddam Hussein became president of Iraq. 1994: The first of 21 fragments of the comet
hit Jupiter, creating a 1200-mile wide fireball 600 miles high. 1997: The Dow Jones Industrial Average (DJIA) closed above 8,000 for the first time. 1999:
John F. Kennedy, Jr., his wife and her
sister, died when their plane that Kennedy was piloting crashed into the Atlantic Ocean. 2002:
John Cocke, who invented the Reduced Instruction Set Computer (RISC), died.