leadership class

Answer:

group of decision-makers and organizers in early cities who controlled the resources, and often the lives, of others

first urban revolution

Answer:

the innovation of the city, which occurred independently in five separate hearths

Mesopotamia

Answer:

region of great cities located between the Tigris and Euphrates Rivers; chronologically the first urban hearth, dating to 3500, and which was founded in the Fertile Crescent

Nile River Valley

Answer:

chronologically, the second urban hearth, dating to 3200 BCE

Indus River Valley

Answer:

chronologically, the third urban hearth, dating to 220 BCE

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