0045 BC: The Julian calendar went into effect. 1748:
Johann Bernoulli, discoverer of exponential calculus,
died. 1817: German physicist Martin Klaproth, who discovered uranium,
zirconium, and cerium, died. 1863: Abraham Lincoln issued the
Emancipation Proclamation declaring
an end to slavery. 1890: The Tournament of Roses parade was first held
in Pasadena, CA. 1894: Satyendra Bose, of the
Bose-Einstein condensates fame, was born. 1894: German physicist
Heinrich (Rudolf) Hertz, who was the first to broadcast and receive
radio waves, died. 1897: Albert Taylor, who
regarded as "the father of navy radar," was born. 1902: The first radio broadcast demonstration in U.S. was given by N. B. Stubblefield. 1908:
The ball signifying the New Year landed for the first time at Times
Square in New York City, having been dropped 60 seconds earlier in 1907 (converted to an LED array for 2006). 1939: The
Hewlett Packard (HP) company was founded. 1972:
Coordinated Universal Time (UTC) was adopted worldwide. 1992:
Navy Rear Admiral Grace Murray Hopper, credited with coining the term
"bug" in computers, died. 2000: Greenwich Electronic Time (GeT) initiated
in UK as an international standard for all electronic commerce.
| 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.