math_fact: 2276 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 2276 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: March 25th is the day in 1995 that WikiWikiWeb, the world's first wiki, and part of the Portland Pattern Repository, is made public by Ward Cunningham.