Synchronization of
East/West City and Empire Growth/Decline
Phases
Local Climate Change
West Asia
Central Asia
East Asia
Local Climate Change
Local Climate Change
Agriculture
Human
Population
Human
Population
Pasturage and Herds
Agriculture
Human Population
Empire
Formation
Steppe Empire Formation
Empire Formation
City Growth/Decline
City Growth/Decline
(Trade, Epidemics)
?
?
Warfare
Warfare