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  February 21
1842: John Greenough patented the
sewing machine. 1865:
John Deere received a patent for his plow. 1878: The first U.S.
telephone directory of about 50 names was issued by the New Haven
Telephone Company, in CT. 1926: Dutch physicist
Heike Kamerlingh Onnes, who discovered superconductivity, died.
1937: The Arrowbile, the first convertible automobile-airplane, made its
maiden flight. 1938: George Hale, responsible for the 200-inch telescope bearing his
name on Palomar Mountain, died. 1947: Edwin Land publicly demonstrated his
Polaroid
Land camera, which could produce a black-and-white photograph in 60 seconds.
1958: The U.S. submarine
Gudgeon
(SS 567) completed 228 days of circumnavigating the world. 1995: Chicago stockbroker
Steve Fossett became the first person to fly solo across the Pacific
Ocean in a balloon, landing in Leader, Saskatchewan, Canada.
Note: These
historical tidbits (see daily
list) 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.
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