They saw Laos as one of dominoes in their Domino Theory. A domino is a tile used in a family of games called "dominoes". Dominoes and playing cards originated in China as developments from dice. Leagues exist in football, netball, pool, darts and dominoes. Chinese dominoes are also available as playing cards. Mexican train is a game played with number dominoes. This is also the most common method for shuffling tiles such as dominoes. Mexican train dominoes can not end on a double. Each player draws seven dominoes, and the dominoes are played into tricks. A suitable set of Wang dominoes can tile the plane, but only aperiodically. Chinese dominoes are also longer than typical European dominoes. The "Draw game" is the game most often referred to as just "Dominoes". The draw game is often referred to as simply "dominoes". Clark Rice to a game of dominoes to decide the name of the town. Chinese dominoes with blank faces were known during the 17th century.