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River valleys were the “cradles of civilization.” Early civilizations made major contributions to social, political, and economic development.
Language and writing were important cultural innovations because they facilitated the preservation and spread of knowledge.
By Jon Shank5
55 ratings
River valleys were the “cradles of civilization.” Early civilizations made major contributions to social, political, and economic development.
Language and writing were important cultural innovations because they facilitated the preservation and spread of knowledge.

3,354 Listeners