Caesars Entertainment Corporation owns, operates, or manages casino entertainment facilities. Its casino entertainment facilities include land-based casinos, riverboat or dockside casinos, and managed casinos, as well as casinos combined with a greyhound racetrack, a thoroughbred racetrack, and a harness racetrack. The company operates its casinos primarily under the Caesars, Harrah's, and Horseshoe names. It also operates hotel and convention space, restaurants, and non-gaming entertainment facilities. In addition, the company owns and operates an online gaming business that provides real money casino, bingo, and poker games under the WSOP and Caesars brands in the United Kingdom; has alliances with online gaming providers in Italy and France; offers ‘play for fun' casino genre games to residents internationally; and provides social games on Facebook and other social media Websites, and mobile application platforms. Further, it owns and operates the World Series of Poker tournament and brand; and a golf course on 175 acres of prime real estate through a land concession on the Cotai strip in Macau. As of December 31, 2012, the company owned, operated, or managed 52 casinos in 7 countries, as well as in the 13 states of the United States. Its facilities had an aggregate of approximately 3 million square feet of gaming space and approximately 42,000 hotel rooms. The company was formerly known as Harrah's Entertainment, Inc. and changed its name to Caesars Entertainment Corporation in November 2010. Caesars Entertainment Corporation was founded in 1937 and is based in Las Vegas, Nevada. Caesars Entertainment Corporation is a subsidiary of Hamlet Holdings LLC.