general_fact: 463 is the number of days in the synodic period of Ceres.
math_fact: 463 is the smallest prime so that it and the next 6 primes are all equal to 3 (mod 4).
trivia: 463 is the number of days in the synodic period of Ceres.
historical_date: April 7th is the day in 1798 that the Mississippi Territory is organized from disputed territory claimed by both the United States and Spain.