general_fact: 318 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 318 is the number of unlabeled partially ordered sets of 6 elements.
trivia: 318 is an uninteresting number.
historical_date: November 13th is the day in 1986 that the Compact of Free Association becomes law, granting the Federated States of Micronesia, the Marshall Islands independence from the United States.