Question: In which casino was this World Series of Poker discipline first offered?
Sentence (from "2006 World Series of Poker"): Forty more events in various disciplines including Omaha, seven-card stud and razz, plus ladies' and senior tournaments led up to the 10,000 US$ no-limit Texas hold 'em main event starting July 28 and running through the final table on August 10.
Relevant evidence: Yes