The peopling of the Americas through Beringia and the importance of Cahokia and the Three Sisters crops.
Beringia was the landmass upon which Northeast Asians migrated to the Americas around 12,000 years ago. The major city named Cahokia was a vital trading center located near present-day St. Louis along the Mississippi River. The three Sisters crops were maize, beans, and squash, which played a significant role in Native American agriculture.
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