general_fact: 2753 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 2753 is the number of subsequences of {1,2,3,...13} in which every odd number has an even neighbor.
trivia: 2753 is an unremarkable number.
historical_date: July 15th is the day in 1799 that the Rosetta Stone is found in the Egyptian village of Rosetta by French Captain Pierre-François Bouchard during Napoleon's Egyptian Campaign.