Brought new diseases back to England and existing diseases to the new land - causing large number of deaths due to the unprotected Native Americans' immune system not recognizing the illness and fighting it off.
the native Americans
Horses
horses
the introduction of horses
horses
The introduction of smallpox to the native Americans.
the introduction of horses to the Native Americans.
Horses
the native Americans
horses
the horse
the introduction of smallpox to the Native Americans
horses
the introduction of horses
Native Americans (North and South) and Europeans.
horses
HorsesHorses