November 20
1866: James Haven
and Charles Hettrich of Cincinnati, OH, received the first patent for a
yoyo in the U.S. 1882: Astrophotographer
Henry Draper
died. 1889: Astronomer
Edwin Hubbell was born.
1906: American radio pioneer Greenleaf Pickard received a patent for the first
silicon crystal detector. 1923:
Garrett Morgan
patented an automatic traffic signal. 1924:
Benoit Mandelbrot,
popularize of fractal geometry, was born. 1945: The
Nuremberg trials
of Nazis began at the Nuremberg Palace of Justice. 1954: American aviation pioneer
Clyde Cessna died. 1967:
At 11 AM, the Census Clock at the Department of Commerce hit 200 million (300 million
in October 2006). 1985: Microsoft released
Windows version 1.0. 1991:
The U.S. provided $1.5B in food and technical assistance to the
Soviet Union.
1993:
NAFTA was approved by the U.S. senate - that "giant sucking sound" of jobs
turned out to be a "giant blowing sound" of illegals into the country. 1998: Construction
of the International
Space Station (ISS) began. 2000: Intel introduced its
Pentium-4 microprocessor.
| 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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