General fact: 99 is the number of names of Allah, the names or attributes of God in the Qur'an.
Mathematical fact: 99 is the ninth repdigit, a palindromic number and a Kaprekar number.
Trivia: 99 is the number of names of Allah, the names or attributes of God in the Qur'an.
Historical date: April 8th is the day in 1959 that the Organization of American States drafts an agreement to create the Inter-American Development Bank.