Texas hold 'em (also known as hold'em or holdem) is a variation of the standard card game of poker. The game consists of two cards being dealt face down to each player and then five community cards being placed face-up by the dealer—a series of three ("the flop") then two additional single cards ("the turn" and "the river"), with players having the option to check, bet, raise or fold after each deal, i.e. betting may occur prior to the flop, "on the flop", "on the turn", and "on the river".
Texas Hold 'em is the "H" game featured in H.O.R.S.E and in H.O.S.E.
Although little is known about the invention of Texas hold 'em, the Texas State Legislature officially recognizes Robstown, Texas, United States as the game's birthplace, dating the game to the early 1900s.After its invention and spread throughout Texas, hold 'em was introduced to Las Vegas in 1967 by a group of Texan gamblers and card players, including Crandell Addington, Roscoe Weiser, Doyle Brunson, and Amarillo Slim.[3] Addington said the first time he saw the game was in 1959. "They didn't call it Texas hold 'em at the time, they just called it hold 'em.… I thought then that if it were to catch on, it would become the game. Draw poker, you bet only twice; hold 'em, you bet four times. That meant you could play strategically. This was more of a thinking man's game."
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~http://en.wikipedia.org/wiki/Texas_hold_'em
~http://www.worldcasinodirectory.com/texasholdemhistory.htm
~http://www.texas-holdem-poker-history.com/~
~http://www.pokerlistings.com/texas-holdem