What are 7 contributions of the Indians to the europeans?

Answer 1

Feminism, hygiene, nutrition, environmentalism, animal rights, etc.

Europeans were notoriously patriarchal while natives had many female leaders. Europeans almost never bathed, while many natives bathed every day. Europeans believed fruits and vegetables were at best of no nutritional value and at worst satanic, and that all things non-human were undeserving of respect.

While all those things were in some places, times and cultures true, there was no universal "Indian" culture. They were as different as Chinese, Arabs and Englishmen. Some had slaves, some not. Some lived by war, some were peaceful, some were farmers some were not. The variation was huge and to lump them all together is insulting and false. Further, they did not "contribute" these ideas to the Europeans because the Europeans looked down on them and then later viewed them as impossible exotic "noble savages".

There is an argument that the Iroquois Confederacy provided a model for the United States articles of Confederacy. It is perhaps an influence but it has been much argued. Locke Hobbes, Hume and others had more influence.