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Day in History Archive - April 29 | ||||||
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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.
Please submit significant
historical events and dates for inclusion in these lists. I will be glad to include your name and
birthday. Please do not submit your death date ;-)
A couple 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.
April 29  1879: Electric arc lights were used for the first time, in Cleveland's Public Square (then known as Monumental Park). 1893: American Nobel physicist Harold Urey, who discovered deuterium, was born. 1905: Philip H. Smith (rare photo), inventor of the Smith Chart, was born. 1913: Gideon Sundback patented the zipper. 1921: David Sarnoff became general manager of RCA. 1937: Wallace Carothers, developer of nylon, died. 1945: American soldiers liberated the Dachau concentration camp. 1953: The first 3-D television broadcast was made by KECA-TV in Los Angeles, CA. 1966: William Eccles, who coined the term "diode," died. 1997: Astronaut Jerry Linenger and cosmonaut Vasily Tsibliyev went on the first U.S.-Russian space walk. | ||||||
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