The purpose of this research is to investigate the probable reasons that humans migrated from Asia to populate North America. After, human evolution originated in Africa, they started move out of Africa to populate the entire globe. There is enough archaeological evidence that put together this big puzzle of the first inhabitants of North American. The most reliable theory that explains this mystery is the Bering Land bridge theory, which explains that the Stone Age people left Siberia to Alaska then passed through the ice-free corridor during the last ice age and arrived in North America. .
For decades, scientists believed the first inhabitants of North America arrived around 13,500 years ago during the late Pleistocene epoch; using the Bering Land Bridge theory, the Bering Strait is a waterway that separates Russia from North America. It lies above the Bering Land Bridge, also called Beringia (Figure 1). According to many archaeologists, around the date an ice-free corridor appeared for human and animals freely crossed to explored the new world. Those people were our ancestors from Africa, and after their evolution they travel from Siberia to North American through out the Bering Bridge Land and those people were the people who started the Clovis culture, the first inhabitants of North American.
The Bering Standstill theory also known, as Bering Land Bridge theory was first proposed in 1997 by two Latin American geneticists to explains how our ancestors got here. Estonian scientists that sample mitochondrial DNA from more than 600 Native Americans revised this theory in 2007. The researchers found that mutations in the DNA indicated this group descendent from Siberia people. According to researchers people lived on Bering Land Bridge for thousands of years before they crossed the ice-free corridor, first proposed by Ernst Antevs, 1935. This corridor appeared in the peak of the ice age through the ice sheets that covered Alaska and North America.