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.
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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.