Polo is a ball game that is played on horseback as a traditional field sport. It is one of the world's oldest known team sports, having been adopted in the Western world from the game of Chovgan (Persian: چوگان), which originated in ancient Iran, dating back over 2,000 years. Initially played by Persian nobility as a training exercise for cavalry units, polo eventually spread to other parts of the world. The game is played by two opposing teams with the objective of scoring using a long-handled wooden mallet to hit a small hard ball through the opposing team's goal.
https://en.wikipedia.org/wiki/Polo