Template:Selected anniversaries/June 20: Difference between revisions
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||1884: Mary R. Calvert born ... astronomer and author. | ||1884: Mary R. Calvert born ... astronomer and author. | ||
||1889: John S. Paraskevopoulos born ... astronomer and academic. His goal -- building a large telescope in Greece -- was never realized, due to the war between Greece and Turkey. Pic. | |||
||1897: Harold Frederick Pitcairn born ... aviation inventor and pioneer. He played a key role in the development of the autogyro and founded the Autogiro Company of America. He patented a number of innovations relating to rotary wing aircraft. Pic. | ||1897: Harold Frederick Pitcairn born ... aviation inventor and pioneer. He played a key role in the development of the autogyro and founded the Autogiro Company of America. He patented a number of innovations relating to rotary wing aircraft. Pic. | ||
Revision as of 13:41, 14 March 2019
1840: Samuel Morse receives the patent for the telegraph.
1875: Inventor and engineer Wilhelm Bauer dies. He designed and invented submarines.
1876: Adventurer and alleged "Pirate of the Prairie" Wallace War-Heels says that he has "offered no man violence", but admits that he has "responded to violence with greater violence, many times."
1877: Alexander Graham Bell installs the world's first commercial telephone service in Hamilton, Ontario, Canada.
2010: Unlicensed Extract of Radium factory accidentally releases self-sustaining colony of transdimensional corporations.
2017: Chromatographic analysis of Ursa Nano reveals a previously unknown shade of blue, "probably as a result of latest cryptographic numina."