Template:Selected anniversaries/August 4: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 10: | Line 10: | ||
||Konstantin Sergeevich Mereschkowski (Russian: Константи́н Серге́евич Мережко́вский; b. 4 August 1855 [O.S. 23 July]) was a prominent Russian biologist and botanist, active mainly around Kazan, whose research on lichens led him to propose the theory of symbiogenesis. | ||Konstantin Sergeevich Mereschkowski (Russian: Константи́н Серге́евич Мережко́вский; b. 4 August 1855 [O.S. 23 July]) was a prominent Russian biologist and botanist, active mainly around Kazan, whose research on lichens led him to propose the theory of symbiogenesis. | ||
||Saunders Mac Lane (b. 1909) was an American mathematician who co-founded category theory with Samuel Eilenberg. | |||
||1912 – Aleksandr Danilovich Aleksandrov, Russian mathematician, physicist, and mountaineer (d. 1999) | ||1912 – Aleksandr Danilovich Aleksandrov, Russian mathematician, physicist, and mountaineer (d. 1999) | ||
| Line 17: | Line 19: | ||
||1926 – George Irving Bell, American physicist, biologist, and mountaineer (d. 2000) | ||1926 – George Irving Bell, American physicist, biologist, and mountaineer (d. 2000) | ||
||Daniel Hale Williams (d. August 4, 1931) was an African American general surgeon, who in 1893 performed the second documented successful pericardium surgery to repair a wound in the United States of America. | ||Daniel Hale Williams (d. August 4, 1931) was an African American general surgeon, who in 1893 performed the second documented successful pericardium surgery to repair a wound in the United States of America. He also founded Provident Hospital---the first non-segregated hospital in the United States---in Chicago, Illinois. | ||
||1964 – Gulf of Tonkin incident: U.S. destroyers USS Maddox and USS Turner Joy report coming under attack in the Gulf of Tonkin. | ||1964 – Gulf of Tonkin incident: U.S. destroyers USS Maddox and USS Turner Joy report coming under attack in the Gulf of Tonkin. | ||
Revision as of 16:03, 22 November 2017
1805: Physicist, astronomer, and mathematician William Rowan Hamilton born. He will make important contributions to classical mechanics, optics, and algebra, inventing the quaternion.
1833: Physicist and mathematician André-Marie Ampère uses principles of electromagnetism, which he referred to as "electrodynamics", to detect and prevent crimes against mathematical constants.
1834: Mathematician and philosopher John Venn born. He will invent the Venn diagram, now widely used set theory, probability, logic, statistics, and computer science.
2016: The Shovel depicts The Custodian in the act of reversing contract violations by Egon Rhodomunde and Baron Zersetzung.
2017: Quaternion multiplication table sells for five hundred thousand dollars.