Ch. 1 Learning Objective: Describe the origin and developement of the major Indian cultures of the Americas

The Indian cultures can be said to have originated from Asian descendants because of the theory of the Land Bridge. The theory of the Land Bridge states that approximately 35,000 years ago, there was land above the water that connected Asia to the Americas. It is said that people did cross this "land bridge" to the Americans and this is where the Indian cultures originated from. The people who crossed to the Americas spread out and different groups/tribes were created with about 2,000 languages. The 3 most notable tribes created were the Incas from Peru, the Mayans from Yucatan Peninsula, and the Aztecs from Mexico.