Among many theories, there is the one which suggests we are all descendents of one African "Eve" living 200,000 years ago. (An Ice Age Leonardo di Vinci in Lascaux, France left behind a 17,000 year old painting in a cave. Our ancestors are also known to carve out of mammoth tusks, and bones.)-keep??
For whatever reason we can possibly think of, man has always migrated. This is a gradual constant "we" can see happening over many years. According to the National Geographic October 1988 issue, it is generally agreed that man drifted northward and eastward from Africa to Europe and Asia (see map). The huge migration to Australia and the Americas was around the same time of the appearance of 'modern' Homo sapiens. Migration was made possible in certain areas because of the low water level of the ocean due the glaciers holding large amounts of water during the Ice Age. As warming began, the glaciers were allowed to melt thus raising the sea level. At this time, land masses now surrounded by water isolated certain clusters of people. These individuals formed groups that split apart and each grew and formed their own cultures.
Paleo-Indians were the earliest known people to inhabit Minnesota around 8-5,000 B.C. Evolving after the Wisconsin glaciation, they are also referred to as Big Game Hunters which lived in small groups that hunted mammoth and Bison. No pottery is known of and they are believed to have had no fabric, so they wore the skins of the animals they hunted.