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  December 25
1642:
Sir Isaac Newton
was born (per the Julian calendar used then). 1741: The
Centigrade temperature scale was devised by astronomer Anders
Celsius. 1776: General George Washington and his troops crossed the Delaware River
for a
surprise attack against Hessian forces at Trenton, NJ. 1868:
Linus Yale, inventor and manufacturer of locks, including the
cylinder or pin-tumbler lock known by his name, died. 1988:
Ernst Ruska,
an electrical engineer who invented the electron microscope, was born. 1939: "A
Christmas Carol," by Charles Dickens, was read on CBS radio for the first time.
1966: St. Elmo
Brady, the first black man to earn a PhD in chemistry, died. 1977: Silent films
legend Charlie Chaplin died.
| Jan
| Feb | Mar |
Apr | May |
Jun | Jul |
Aug | Sep |
Oct | Nov |
Dec |
Note: These
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.
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