general_fact: 28598 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 28598 is an unremarkable number.
trivia: 28598 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: April 18th is the day in 2007 that the Supreme Court of the United States upholds the Partial-Birth Abortion Ban Act in a 5-4 decision.