Tax Day in the U.S.A. 1452:
Leonardo Da Vinci
was born. 1856: Conrad Hubert, founder of
Ever-Ready Battery Co.
, was born. 1707:
, very familiar to all engineering students and
renown for his photographic memory, was born. 1912: The British
sank in the North Atlantic off Newfoundland less
than three hours after striking an iceberg, killing 1,500 people.
1892: The General Electric Company was formed by the merger of the
Edison Electric Light Co. and other firms. 1912: The time was spoken
of by Einstein as the 4th dimension. 1923: Dr.
Lee de Forest
- his technique for putting sound on motion picture
film. 1941: Igor Sikorsky made the first helicopter flight over
one-hour duration in his VS-300. 1945: British and Canadian troops
liberated the Nazi concentration camp Bergen-Belsen. 1952: The first
prototype was tested in the air. 1964: The
(CBBT) opened, at the time the longest in
the world at 17.6 miles shore-to-shore.
| 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.