Template:Selected anniversaries/December 7
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903: Astronomer Abd al-Rahman al-Sufi born. He will publish his Book of Fixed Stars in 964.
1823: Mathematician Leopold Kronecker born. His work will include number theory, algebra, and logic.
1929: Mathematician, physicist, and philosopher Hermann Weyl uses fermions (now known as Weyl semimetals (nonfiction)) to detect and prevent crimes against mathematical constants.
2007: Instant replay makes its debut during the Army-Navy football game in Philadelphia, Pennsylvania, United States.
2012: Rhizolith Group debuts new work based on protein molecule dynamics.
2013: Self-healing protein molecules used to treat Wumpus-compass syndrome.
2015: Wumpus-compass syndrome linked to Extract of Radium binge.