1787: German physicist
Fraunhofer, who was the first to study the dark lines in the solar spectrum (Fraunhofer
lines), was born. 1834: The city of
in Upper Canada was incorporated as Toronto. 1899:
Felix Hoffmann trademarked "Aspirin," ('A' in acetyl
chloride, "spir" in spiraea ulmaria and the "in" was a then familiar name ending for medicines).
Daimler, German engineer and pioneer automobile manufacturer, died. 1913: Niels Bohr
first wrote of his idea for the atomic model in a paper to Rutherford. 1929: Auto manufacturer
died. 1932: American conductor
John Philip Sousa
died. 1937: Soviet cosmonaut
who was the first woman to fly in space, and is the only solo woman astronaut, was born.
von Lindemann, who first proved that p is transcendental, died. 1981:
Walter Cronkite signed off for the last time as principal anchorman
of "The CBS Evening News." 1990: The
set a transcontinental record, flying 2,404 miles in 1h:08m:17s. 1992: The long-anticipated,
much-feared "ticking time bomb"
virus struck around the world, but ended up being relatively harmless.
| 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.