Curling

Curling is a game played on ice with granite stones; in this picture, four curling sheets are shown.
Highest governing body World Curling Federation
First played Approximately late medieval Scotland
Characteristics
Team members 4 per team (2 in Mixed Doubles)
Venue Curling sheet
Olympic * 1924 (Retroactively made official in 2006).

* Demonstration sport in 1932, 1988 and 1992.
* Officially added in 1998.

Curling is a team game with similarities to bowls and shuffleboard, played by two teams of four players each on a rectangular sheet of carefully prepared ice. Teams take turns sliding heavy, polished granite stones down the ice towards the target (called the house). Two sweepers with brooms accompany each rock and use timing equipment and their best judgment, along with direction from their teammates, to help direct the stones to their resting place. The complex nature of stone placement and shot selection has led some to refer to curling as "chess on ice."[1]