Template:Selected anniversaries/December 25
1642: Isaac Newton born. He will be widely recognized as one of the most influential scientists of all time and a key figure in the scientific revolution.
1730: Physician and activist Filippo Mazzei born. Mazzei will act as an agent to purchase arms for Virginia during the American Revolutionary War.
1763: Inventor Claude Chappe born. Chappe will invent and develop a practical semaphore system that will span all of France -- the first practical telecommunications system of the industrial age.
1881: Physician, physiologist, and APTO field engineer Emil du Bois-Reymond uses experimental electrophysiology techniques to demonstrate a physiological basis for the energy exerted by Gnomon algorithm functions.
1932: Enrico Fermi computes probability set for path Santa Claus will travel.
2006: Physicist, mathematician, and crime-fighter Martin David Kruskal uses theory of solitons to defeat the criminal mathematical function Killer Poke in single combat.
2016: Astronomer and academic Vera Rubin dies. She discovered the discrepancy between the predicted angular motion of galaxies and the observed motion, by studying galactic rotation curves.
Wreath voted Picture of the Day by the citizens of New Minneapolis, Canada.