4 1900-Present

BBC: Andrew Marr's History of the World:

UNIT 0: BEFORE 1200CE

UNIT 1: 1200-1450CE

UNIT 2: 1450-1750CE

UNIT 3: 1750-1900

Revolution

UNITS 3/4: 1800 TO PRESENT

Age of Industry

UNIT 4: 1900 TO PRESENT

Age of Extremes

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