HISTORY OF THE AMERICAN INDIANS

The first Americans: 30,000 – 5000 years ago

During the most recent Ice Age, lasting from 30,000 to 10,000 years ago, an undersea ridge between Siberia and Alaska emerges from the sea. Known as the Bering Land Bridge, it lies partly south of the ice cap. It develops a steppe-like ecology of grasslands, grazed by large animals such…

HISTORY OF AMERICA

From one continent to six: 200 – 20 million years ago

The reshaping of the surface of the earth, into the pattern now familiar to us, takes place between 200 and 20 million years ago.

First south America splits from Africa and drifts westwards (it is the snug fit between their coast lines which suggests the idea of continental drift to…