What event occurred first in the history of America?

The first significant event in the history of America is often considered to be the arrival of the Native Americans, who migrated from Asia via the Bering Land Bridge thousands of years ago. This was followed by the Norse exploration led by Leif Erikson around the year 1000 AD, who is believed to have reached parts of North America, specifically what is now Newfoundland, Canada. Later, Christopher Columbus's arrival in 1492 marked the beginning of sustained European contact and colonization.