How come it took so long for the Americas to be discovered by not only European nations, but by Asian nations?

Question

Title pretty much sums things up

In: 6

Answer 1

>The ancestors of the American Indians were nomadic hunters of northeast Asia who migrated over the Bering Strait land bridge into North America probably during the last glacial period (11,500–30,000 years ago). By c. 10,000 bc they had occupied much of North, Central, and South America.

https://www.britannica.com/summary/American-Indian