The broader family of rummy games, which has a long history spanning many cultures & centuries, is where Rummy Ox got its start. It is thought that the game of rummy originareel rush slotsted from the Chinese game of mahjong and the Mexican game of concentration, both of which focus on matching & melding cards. During the early 20th century, the game became popular in the US & saw several rule changes and adaptations. Because of its distinct gameplay mechanics and scoring system, Rummy Ox has become a unique variation of Rummy.