math_fact: 4582 is the number of partitions of 52 into distinct parts.
trivia: 4582 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: July 17th is the day in 1918 that the RMS Carpathia, the ship that rescued the 705 survivors from the RMS Titanic, is sunk off Ireland by the German SM U-55; 5 lives are lost.