What’s in a name? The United States Pony Clubs, Inc. (USPC or Pony Club) isn’t actually for ponies. When Pony Club was originally founded in Great Britain in 1929, the term “pony” was used generally to describe the mount of a youth rider. Horses, ponies, and equines of all sizes and breeds are welcome to participate with USPC members in the various activities available through the US Pony Clubs.