There are many intriguing mysteries surrounding the peopling and discovery of the western hemisphere. Who were the people to first inhabit the northern and southern continents? Why did they come? How did they get here? How long was their migration? A possible narrative suggests that the movement of ancient people to the New World began when they crossed a land bridge that once existed between what we today call Siberia and Alaska, a bridge that later disappeared because of glacial melting and is now covered by water and known as the Bering Strait. It is also possible that these early people were motivated by wanderlust or the need for a new source of food. Perhaps they were searching for a better climate, and maybe they came for religious reasons, to escape persecution or find a more congenial area to practice their partic u lar beliefs.