<P> 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 . </P>
<P> 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 . </P>
where does the world series of poker take place
where does the world series of poker take place
Las Vegas
Las Vegas