Introduction: Advent of the Europeans to British supremacy (1492-1606)
USA as a British Colony (1606-1783).
USA as an Independent Country (1783 - 1819)
Expansion of USA: From 13 to 50 States (1820 - 1949)
Constitution of the USA: Salient Features
Civil War between the North and the East (1850 - 1869)
Industrialization and its emergence as one of the world powers (1870 -1916)
USA’s role in the Two World Wars (1914 – 1918 & 1939 - 1945)
Post 1945 world scenario and emergence of USA and USSR as the Two World Powers.
Topic 1: Introduction:-From ancient times to 1492
Historical Background
225 million years ago, Earth was one supercontinent (Pangaea) and ocean.
About 10 million years ago, the North America that we know today was formed (geographical shape).
At the height of the Ice Age, between 34,000 and 30,000 B.C., much of the world's water was contained in vast continental ice sheets.
As a result, the Bering Sea was hundreds of meters below its current level, and a land bridge, known as Beringia, emerged between Asia and North America.
At its peak, Beringia is thought to have been some 1,500 kilometers wide.
A moist and treeless tundra, it was covered with grasses and plant life, attracting the large animals that early humans hunted for their survival.
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