Q#1.What set the stage for North American History?

The geological and geographical conditions that set the stage for the North American history can be traced back to as much as 225 million years ago, when chunks of terrain began to drift away from what once existed as a colossal continent known as Pangaea. In this dismantle copious landscapes that now belong to North America where created, but perhaps the most influential event to set the stage for North American history has to be The Great Ice Age. During the time The Great Ice Age happened some 35,000 years ago, the Ice Age solidified much of the world oceans into enormous glaciers, lowering the level of the sea. Once the sea level decreased , it unveiled a land bridge connecting Eurasia with North America in what is now known to be the present-day Bering Sea between Siberia and Alaska. During the existence of this bridge small nomadic herds immigrated from side to side this continued for 250 centuries in which the American continent began to slowly populate. Eventually the ice age ended and the sea level arose again and the bridge disappeared. With the bridge now gone the people where now isolated but with the climatic warming that melted the bridge, also made way for ice less valleys to travel creating various opportunities for further immigration.The Ice Age not only helped populate North America but it also shaped it to be what we know it like today.