Curling is one of the oldest team sports, played on ice, similar to shuffleboard. The game dates back to medieval Scotland where competitors slid common stones of various sizes across frozen lochs. Today the stones are standardized, composed of 42 pounds of granite with plastic handles bolted into the rocks. Curling gets its name from the spin placed on the stone once it is released. It has seen a rise in popularity since becoming a medal sport in the 1998 Winter Olympics.
One game is composed of ten ends and lasts about 2 hours and 40 minutes.