How was the land bridge between Russia and North America important to early man?

The sea between Alaska and Russia is shallow and when water is locked in glacial ice, there was a land bridge. Over the last 100,000 years there were at least 4 times when man and animals could walk from Russia to North America. That is how scientists think people came here.

Explanation:

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation: