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.
| Jan | Feb |
Mar | Apr | May |
Jun | Jul | Aug |
Sep | Oct | Nov |
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.