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The Indus River valley was home to the early Harappan civilization while the Yellow River valley in China saw the rise of the earliest Chinese dynasties. Both these regions are included on the same map.
The Cradle of Civilization map packs are Firaxis-designed maps of real-world locations. You can play random leaders in these settings, or choose leaders appropriate to the history of these areas. The maps can also be opened up in World Builder, where you can create specific scenarios.
