How did the "first americans" migrate to north america?

Scientists believe that the first people to live in America (the ancestors of the Native Americans) arrived to North America from Asia. They crossed a land bridge that is known as Beringia, located in the Bering Strait. This bridge was a consequence of lower ocean levels due to glaciers locking large amounts of water when the Earth was much colder.

i'm asking the same thing i asked this other cat all of

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.