When did mustangs arrive in America?

Mustangs have always been in America. They have their origins, however, from the Spanish Barbarian horses that Christopher Columbus brought over from Spain (in addition to the longhorn cattle that were foundation for the Texas Longhorn and Florida Cracker/Pineywoods breeds) in the late 1400's.
Mustangs have always been in America. They have their origins, however, from the Spanish Barbarian horses that Christopher Columbus brought over from Spain (in addition to the longhorn cattle that were foundation for the Texas Longhorn and Florida Cracker/Pineywoods breeds) in the late 1400's.