What should change about teaching Native American history in the United States?

Schools start teaching about "Native American Culture" in Kindergarten but schools don't actually inform their students on Native American culture. They only offer the bare minimum like reenacting the First Thanksgiving but shouldn't they offer more? It's important to learn and have knowledge of indigenous culture and celebrating their heritage helps grow their culture.

because he was a christian?

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.