You may appreciate an earlier response I posted to the question Various writers who write from or sympathize with perspective(s) of indigenous people in America and abroad have suggested that the political structure of the Iroquois confederacy had a consequential influence on the Federal structure of the US Constitution. Is there evidence to affirm this idea ?, which may be found [here] (https://www.reddit.com/r/AskHistorians/comments/iyvarp/various_writers_who_write_from_or_sympathize_with/).

The short answer is that our original proposals for a federal government came from a man that championed the suggestion of an Onondaga Chief that we confederate, and there were similarities between these proposals and the Iroquois Confederacy's structure. The Constitution was later developed as a result of modification of these proposals and differs quite a bit from the Confederacy, yet some similarities remain. It would be, however, wildly speculative to suggest we would not have united as a nation of independent states without their influence. Happy to answer followups you may have.