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Pangaea
The theory that suggests the continents were once connected into one mega-continent before drifting apart.
Land Bridge theory
The theory proposing a connection between Asia and North America across the Bering Sea, allowing for human migration.
Three sister farming
A farming technique used by Eastern Indians involving the simultaneous cultivation of corn, beans, and squash for mutual benefit.
Iroquois Confederation
A group of five tribes in New York state that formed a matrilineal confederation for common interests like defense.
Columbian Exchange
The exchange of plants, animals, diseases, and technologies between the Old and New Worlds following Columbus's voyages.
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