Fait mathématique: 2873 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 2873 is a boring number.
Date historique: November 12th is the day in 1958 that a team of rock climbers led by Warren Harding completes the first ascent of The Nose on El Capitan in Yosemite Valley.