1838: A U.S.
patent was issued to John Ericsson for the
screw propeller. 1884: The first edition of the
Oxford English Dictionary was printed. 1903:
George Gabriel Stokes, who developed the Stokes' Theorem, died. 1911: Thomas Jennings
was found guilty with the first use of
1959: Texas Instruments was issued a patent for the integrated circuit. 1968: Canada's
army, air force, and navy were combined into a single
1972: The first hand-held scientific calculator (HP-35) hit the market for $395. 1976: German physicist and Nobel
Werner Heisenberg, famous for his Heisenberg Principle, died. 1981:
Douglas, of aircraft design fame, died. 1982:
Late Night With
David Letterman first aired. 2003: The
Shuttle disintegrated over Texas during re-entry.
| 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.