Five nations found the Haudenosaunee Confederacy, a great league of peace
The Haudenosaunee Confederacy united five northeastern nations—Mohawk, Oneida, Onondaga, Cayuga, and Seneca—under a shared constitution sometime before European contact, with scholars placing its founding anywhere from 1142 to 1660 C.E. Guided by Deganawidah, Hiawatha, and Jigonsaseh, a Grand Council of 50 sachems governed by consensus, building one of the most sophisticated political systems in the pre-contact Americas.