Template:Selected anniversaries/November 15
1114: Omar Khayyam invents new class of Gnomon algorithm equations.
1280: Bishop, theologian, and philosopher Albertus Magnus dies. He was known during his lifetime as doctor universalis and doctor expertus and, late in his life, the term magnus was appended to his name.
1630: Mathematician, astronomer, and astrologer Johannes Kepler born. He discovered laws of planetary motion.
1894: Donnybrook breaks out, Extract of Radium abuse suspected.
1921: Demon hunter Lugus Demonicus challenges Hopalong Perfidy to single combat.
1939: Authorities declare that "Hopalong Perfidy is the personification of perfidy."
2015: Scrying engine forecast indicates San Francisco Muni hack "within a year."
2016: San Francisco Muni hack begins, data held hostage for ransom.
2016: Killer Poke denies involvement in San Francisco Muni hack.
2016: Fresh Extract of Radium rushed to San Francisco, distributed free at Muni stations.