Template:Selected anniversaries/July 1: Difference between revisions

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||1646 – Gottfried Wilhelm Leibniz, German mathematician and philosopher (d. 1716)
||1770 – Lexell's Comet passes closer to the Earth than any other comet in recorded history, approaching to a distance of 0.0146 a.u.
||1788 – Jean-Victor Poncelet, French mathematician and engineer (d. 1867)
|File:Wizard Jan Kochanowski.jpg|link=Jan_Kochanowski|1818: Mathematician and astronomer [[Jan Kochanowski]] uses the [[Nebra sky disk (nonfiction)|Nebra sky disk]] to preview the [[Great Comet of 1819 (nonfiction)|Great Comet of 1819]].
|File:Wizard Jan Kochanowski.jpg|link=Jan_Kochanowski|1818: Mathematician and astronomer [[Jan Kochanowski]] uses the [[Nebra sky disk (nonfiction)|Nebra sky disk]] to preview the [[Great Comet of 1819 (nonfiction)|Great Comet of 1819]].
File:Great Comet of 1819 by Kendall.jpg|link=Great Comet of 1819 (nonfiction)|1819: Johann Georg Tralles discovers the [[Great Comet of 1819 (nonfiction)|Great Comet of 1819]] (C/1819 N1). It was the first comet analyzed using polarimetry, by François Arago.
File:Great Comet of 1819 by Kendall.jpg|link=Great Comet of 1819 (nonfiction)|1819: Johann Georg Tralles discovers the [[Great Comet of 1819 (nonfiction)|Great Comet of 1819]] (C/1819 N1). It was the first comet analyzed using polarimetry, by François Arago.
||1860 – Charles Goodyear, American chemist and engineer (b. 1800)
||1872 – Louis Blériot, French pilot and engineer (d. 1936)
||1872 – William Duddell, English physicist and engineer (d. 1917)
||1874 – The Sholes and Glidden typewriter, the first commercially successful typewriter, goes on sale.
||1881 – The world's first international telephone call is made between St. Stephen, New Brunswick, Canada, and Calais, Maine, United States.[1]
||1884 – Allan Pinkerton, Scottish-American detective and spy (b. 1819)
File:Johann Jakob Balmer.jpg|link=Johann Jakob Balmer (nonfiction)|1888: Mathematician and physicist [[Johann Jakob Balmer (nonfiction)|Johann Jakob Balmer]] develops a [[Gnomon algorithm function]] based on the visible spectral lines of the hydrogen atom which unexpectedly reveals imminent [[crimes against mathematical constants]].
File:Johann Jakob Balmer.jpg|link=Johann Jakob Balmer (nonfiction)|1888: Mathematician and physicist [[Johann Jakob Balmer (nonfiction)|Johann Jakob Balmer]] develops a [[Gnomon algorithm function]] based on the visible spectral lines of the hydrogen atom which unexpectedly reveals imminent [[crimes against mathematical constants]].
||1890 – Canada and Bermuda are linked by telegraph cable.
||1906 – Jean Dieudonné, French mathematician and academic (d. 1992)
||1908 – SOS is adopted as the international distress signal.
||1957 – The International Geophysical Year begins.
||1963 – ZIP codes are introduced for United States mail.
||1968 – The United States Central Intelligence Agency's Phoenix Program is officially established.
||1968 – The Nuclear non-proliferation treaty is signed in Washington, D.C., London and Moscow by sixty-two countries.
||1971 – William Lawrence Bragg, Australian-English physicist and academic, Nobel Prize laureate (b. 1890)


File:Nikolay Basov.jpg|link=Nikolay Basov (nonfiction)|2001: Physicist and educator [[Nikolay Basov (nonfiction)|Nikolay Basov]] dies. He did fundamental work in the field of quantum electronics.
File:Nikolay Basov.jpg|link=Nikolay Basov (nonfiction)|2001: Physicist and educator [[Nikolay Basov (nonfiction)|Nikolay Basov]] dies. He did fundamental work in the field of quantum electronics.

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