World Series of Poker
The World Series of Poker (WSOP) is a series of poker tournaments held annually in Las Vegas and, since 2005, sponsored by Caesars Entertainment Corporation (known as Harrah's Entertainment until 2010). It dates its origins to 1970, when Benny Binion invited seven of the best-known poker players to the Horseshoe Casino for a single tournament, with a set start and stop time, and a winner determined by a secret ballot of the seven players.
2007 World Series of Poker
The 2007 World Series of Poker (WSOP) began on June 1, 2007. The $10,000 (US) no-limit Texas hold 'em Main Event began on July 6 and was completed on the morning of July 18. All events were held at the Rio All Suite Hotel and Casino in Las Vegas, Nevada by Harrah's Entertainment, which has run the annual event since its purchase from the Binion family in 2004.