Council of Trent
Werner von Siemens
, German electrical engineer who helped develop
telegraph industry (and for whom the unit of conductance is named
after), was born. 1903: Wright Brothers made their first flight
at Kittyhawk, NC. 1920: first accurate measurement of the size of
a fixed star was made on Betelgeuse and was found to be 260 million
miles in diameter - 150 times larger than the previous measurement.
, assistant to Alexander Graham Bell, died. 1939:
Perkin Elmer incorporated. 1940: French biophysicist
Jacques-Arsène d' Arsonval
, who invented the reflecting moving-coil
used to measure weak electric currents, died.
1962: The first U.S. communications earth satellite to transmit
telephone, television, teleprinter & facsimile signals,
, was launched. 1990: Tim Berners-Lee launched the World
Wide Web. 1994: First meeting of the World Wide Web (W3) Consortium
took place in Cambridge at the Massachusetts Institute of Technology.
| Feb | Mar |
Apr | May |
Jun | Jul |
Aug | Sep |
Oct | Nov |
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.