IZOD IndyCar World Championships
The IZOD IndyCar World Championship Presented by Honda was an IndyCar Series race on the Las Vegas Motor Speedway, held from 1996–2000, and again in 2011. It was first known as the Las Vegas 500k. The Champ Car World Series held a race at the track during the 2004 and 2005 seasons as doubleheaders with the NASCAR Camping World Truck Series and a street race was held in Las Vegas at the Fremont Street Experience in 2007.
International Linguistics Olympiad
The International Linguistics Olympiad (IOL) is the fourth newest of a group of twelve International Science Olympiads. Its abbreviation IOL is deliberately chosen not to correspond to the name of the organization in any particular language, and member organizations are free to choose for themselves how to designate the competition in their own language. This olympiad furthers the fields of mathematical, theoretical, and descriptive linguistics.