July 28
1866: The
American Dental
Association proposed its first code of ethics. 1851: A total solar eclipse was
first captured on a daguerreotype photograph at the Royal Observatory in
Königsberg, Prussia. 1858: Fingerprints were used as a means of
identification for the first time. 1866: The
metric
system was authorized for the standardization of weights and measures throughout
the United States this day. 1900: Louis Lassing of New Haven, CT created the first
hamburger. 1904:
Pavel Cherenkov, who discovered the radiation bearing his name,
was born. 1907: Earl Tupper, inventor of the plastic Tupperware, was born. 1943:
President Roosevelt announced the end of coffee rationing. 1945: A U.S. Army
B-25 bomber got lost in the fog and crashed into Empire State
Building. 1977: The 799-mile
trans-Alaska pipeline began full operation as the first oil from
Prudhoe Bay arrived at Valdez. 1986: NASA released a transcript from doomed
Challenger space shuttle,
where pilot Michael Smith could be heard saying, "Uh-oh!" as the spacecraft disintegrated.
| 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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