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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. All will eventually be either verified or removed.
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.
May 16Chebyshev logo
1821: Russian mathematician
Pafnuty Chebyshev, after whom the Chebyshev filter transfer function is named, was born. 1830: Mathematician
Jean-Baptiste-Joseph Fourier died. 1831:
David Hughes, inventor of the carbon microphone, was born. 1866:
Root beer was invented by Charles Hires. 1881: The first
electric tram for the public started service in Germany. 1866: The
nickel replaced the half-dime coin. 1933:
Thomas Edison was issued his last patent - for an electro-plating device. 1946: Jack Mullin showed the world the first
magnetic tape recorder. 1960: A synthetic ruby crystal laser was first operated at Hughes Research Laboratories. 1963: After 22 Earth orbits
Gordon Cooper returned to Earth, ending Project Mercury. 1975:
Junko Tabei became the first woman to reach the summit of Mount Everest. 1992: The space shuttle
Endeavour completed its maiden voyage. 2002:
Star Wars: Episode II - Attack of the Clones, was released in theaters.