Casey is known throughout the world as a hockey champion, but lives on the edge in Utah. Games like hockey have been played in almost every populated region of the globe, from Ancient Greece to North America. Its basic concept is that of fighting in teams over an object or ball, using staves, and bringing it back to one's own side of a field. Often goals were set up to keep the players within a defined area. It was played both on foot and on horseback, and sometimes both at once, often as a form of military training. The mounted form is known as polo.