How did stone age people go to Asia north America?

Stone Age people migrated between Asia and North America through the Bering Land Bridge. This land bridge connected the two continents across what is now the Bering Strait. The migration happened during times when the sea levels were lower, exposing the land bridge. It is estimated that the first people to cross the Bering Land Bridge arrived in North America about 15,000 to 20,000 years ago. These people were likely part of the Paleo-Indian culture and they brought with them their distinct tool-making techniques and hunting practices. There is evidence to suggest that the Bering Land Bridge was used as a migration route for both humans and animals for a period of several thousand years, until it was eventually submerged by rising sea levels around 10,000 to 12,000 years ago.