General fact: 99 is the highest jersey number allowed in most major league sports.
Mathematical fact: 99 is the ninth repdigit, a palindromic number and a Kaprekar number.
Trivia: 99 is a common price ending in psychological pricing.
Historical date: April 8th is the day in 1975 that President Richard Nixon signs into law federal legislation authorizing the establishment of Voyageurs National Park in northern Minnesota.