Based on what you already know about American Indians and about the east coast, what do you think the Cherokee, Iroquois, and Chickasaw groups would have in common?

Confederacy organization

Explanation:

The Cherokee are one of the native Americans. The Cherokee are considered as one of the ancient and indigenous people of Southeastern Woodlands of United States.

The Iroquois are also known as the Haudenosaunee. They are the powerful native confederacy of the United States. They are one of the powerful native Americans confederacy. The Iroquois society are matrilineal society.

The Chickasaw were well known as one of the fiercest warriors in the ancient Americas and they earned a nickname as "Spartans of the Lower Mississippi Valley."

One of the most common thing that they have in  common is that they have Confederacy organization.

richard milhous nixon (january 9, 1913 – april 22, 1994) was the 37th president of the united states, serving from 1969 to 1974, when he became the only president to resign (quit). he is also known for corruption and the watergate scandal which resulted in the public losing trust in him and his resignation.

the name of the theory is landmass theory.