Columbian Exchange: The Columbian Exchange was the widespread transfer of plants, animals, culture, human populations, technology, and diseases between the Americas and Europe following Christopher Columbus' arrival in 1492.
Horse: Horses were introduced to the Americas by Europeans and had a profound impact on Native American societies. They transformed hunting techniques, transportation systems, and warfare strategies.
Iron Tools: The introduction of iron tools by Europeans greatly improved agricultural practices among Native Americans. Iron tools such as plows made farming more efficient and increased productivity.