When did navtive americans first arrive in the americas

About 30,000 years ago, during the Ice Age, temp. fell and much of Earth was covered by glaciers, sheets of ice up to a mile thick. This exposed a wide bridge of land between Asia and North America that scientists call Beringia.

Explanation:

adopted the practice of proskynesis, a persian court custom that involved bowing down and kissing the hand of others, depending on their rank.