You probably know this having watched the documentary, but I'm just adding context for others. It's primarily because many American tribes try to maintain reli

You probably know this having watched the documentary, but I'm just adding context for others. It's primarily because many American tribes try to maintain religious beliefs in conflict with an immigrant identity. Although, evidence points to most of the earliest American humans immigrating across the Bering Land Bridge ~20,000 years ago. The religious stories tribes tell depict that they came from American caves, soil, water sources or other nature-related points of origin. It's religious-based denialism, no different than what other major religions do when their beliefs conflict with reality.