math_fact: 914 is the number of binary rooted trees with 15 vertices.
trivia: 914 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: July 2nd is the day in 1964 that U.S. President Lyndon B. Johnson signs the Civil Rights Act of 1964 meant to prohibit segregation in public places.