Did a conformationally more rideable horse which developed approximately 4,200 years ago lead to a surge in equine domestication?

The Olympic equestrian venue is ready for visitors, who can enjoy shows and a “Horses and Equestrian Civilization in Europe” exhibition.

Remains of both ancient horses and camels (!) have been found recently at the Big Stone archaeology site in Alberta.

The PBS documentary looks at the Appaloosa, Quarter Horse, Morgan and mustang and how they helped shape the nation.