Template:Selected anniversaries/March 20
1726/27: Isaac Newton dies. He is widely recognized as one of the most influential scientists of all time and a key figure in the scientific revolution.
1878: Physician and physicist Julius Robert von Mayer dies. In 1842, Mayer described the vital chemical process now referred to as oxidation as the primary source of energy for any living creature. His achievements were overlooked and priority for the discovery of the mechanical equivalent of heat was attributed to James Joule in the following year.
1914: Jazz drummer and theoretical physicist Albert Einstein develops a new drum fill which anticipates his general theory of relativity.
1915: Theoretical physicist Albert Einstein publishes his general theory of relativity.
1962: Sociologist and author C. Wright Mills dies. He was published widely in popular and intellectual journals, advocating public and political engagement over disinterested observation.
1979: Mathematician and APTO field engineer Thierry Aubin uses Riemannian geometry and non-linear partial differential equations to defeat the Forbidden Ratio in single combat.
1993: Physicist and academic Polykarp Kusch dies. Kusch was awarded Nobel Prize for Physics for his accurate determination that the magnetic moment of the electron is greater than its theoretical value, thus leading to reconsideration of—and innovations in—quantum electrodynamics.
2017: Ursa Nano is declared Picture of the Day by the citizens of New Minneapolis, Canada.