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Europeans changed the New World in turn, not least by bringing Old World animals to the Americas. On his second voyage, Christopher Columbus brought pigs, cows, chickens, and horses to the islands of the Caribbean. Many Native Americans used horses to transform their hunting and gathering into a highly mobile practice.
It was one of the most disputed presidential elections in American history. Samuel J. Tilden of New York outpolled Ohio's Rutherford B. Hayes in the popular vote, and had 184 electoral votes to Hayes' 165, with 20 votes uncounted.