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 March 6
 1787: German physicist
Joseph
von Fraunhofer, who was the first to study the dark lines in the solar spectrum
(Fraunhofer lines), was born. 1834: The city of
York in Upper Canada was incorporated as Toronto. 1899:
Felix Hoffmann trademarked "Aspirin," ("A"cetyl
chloride, "spir"aea ulmaria, "in" was a then familiar name ending for medicines).
1900: Gottlieb
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. 1932:
American conductor John Philip Sousa died. 1937: Soviet cosmonaut
Valentina
Tereshkova, who was the first woman to fly in space, and is the only solo woman
astronaut, was born. 1939:
Ferdinand
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
SR-71 Blackbird set a transcontinental record, flying 2,404 miles
in 1h:08m:17s. 1992: The long-anticipated, much-feared "ticking time bomb"
Michelangelo virus struck around the world, but ended up being
relatively harmless.
Note: These
historical tidbits (see daily
list) have been collected from various sources, mostly on the Internet.
As detailed in my
It Happened When? Factoid 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.
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