ap us chap 1
Subject:
US History [1]
Chapter 1
New World Beginnings
33,000 B.C. - A.D. 1783
225 Million Years Ago - Pangaea started to break apart.
10 Million Years Ago - North America was shaped by nature - Canadian Shield
2 Million Years Ago - Great Ice Age
35,000 Years Ago - The oceans were glaciers and the sea level dropped, leaving an isthmus connecting Asia
and North America. The Bering Isthmus was crossed by people going into North America.
10,000 Years Ago - Ice started to retreat and melt, raising the sea levels and covering up the Bering Isthmus.