Question: The Professional Poker Tour (PPT) was a series of televised poker tournaments, spinning off from the World Poker Tour (WPT) television series, it billed itself as the first professional poker league, and was limited to players who have established themselves on the World Series of Poker (WSOP) is a series of poker tournaments held annually in Las Vegas and, since which year?
Sentence (from "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).
Relevant evidence: Yes