In order to keep the necessary number of cards in hand after melding, players must discard one card. The remaining cards in the opponents' hands are usedrummy town to determine points when a player successfully melds all of their cards, ending the round. There are many variations of rummy to suit a variety of tastes and playing styles. Gin Rummy, one of the most well-known varieties, was created in the early 1900s and immediately became popular in American homes.