Rugby union is a team sport played with an oval ball, where two teams of 15 players each compete to score points by carrying, passing, or kicking the ball over the opponent's goal line. The game is played on a rectangular field with goalposts at each end. Points can be scored through tries, conversions, penalty kicks, and drop goals. The sport originated in England in the early 19th century and has since grown in popularity worldwide. World Rugby is the governing body that oversees international competitions, including the Rugby World Cup, which showcases the best teams from around the globe every four years.