Why are the Iroquois know by several different names?

Originally they were formed by five tribes: the Cayuga, Onondaga, Mohawk, Seneca, and Oneida. Later, in the 1700s, the Tuscarora tribe joined. The French named them the Iroquois, but they called themselves the Haudenosaunee which means People of the Longhouse. The British called them the Five Nations.

The French named them the Iroquois, but they called themselves the Haudenosaunee. The British called them the Five Nations.

true

coz they had the rank system in society according to the economic power of the people

yes i can of course like what is it gonna be about