The historians that came of age during the middle to late twentieth century tended to turn their attention toward : Social and cultural events and themes
This refer to the period between 1960 - 1999. many of them refer to the events that happen before this as 'history from below'
hope this helps
settlement of a region
growth of agriculture
establishment of government
expansion of territory
a period of exploration
the birth of industry
age of maturity
stagnation and decline