4.2-kiloyear event (1 ene 2200 año aC – 1 ene 2100 año aC)

Descripción:

A severe aridification phase, likely connected to a Bond event, which was registered throughout most of North Africa, Middle East and continental North America. Related droughts very likely caused the collapse of the Old Kingdom in Egypt and the Akkadian Empire in Mesopotamia

https://en.wikipedia.org/wiki/Aridification

https://en.wikipedia.org/wiki/Bond_event

https://en.wikipedia.org/wiki/Old_Kingdom_of_Egypt#Decline%20into%20the%20First%20Intermediate%20Period

https://en.wikipedia.org/wiki/Akkadian_Empire#Collapse

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