1) The world's oldest university, Al-Qarawiyyin, was founded in 859 AD and is located in Fez, Morocco.

2) The world's first credit card was introduced in 1950 by Diners Club.

3) Cyclones are fueled by warm ocean waters and atmospheric conditions that allow the formation of thunderstorms.

4) The highest-grossing concert tour of all time is U2's "360° Tour," which earned over $735 million in ticket sales.