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Question
Chinese civilization along the Yellow and Yangtze Rivers ([...] BCE).
Answer
2200

Question
Chinese civilization along the Yellow and Yangtze Rivers ([...] BCE).
Answer
?

Question
Chinese civilization along the Yellow and Yangtze Rivers ([...] BCE).
Answer
2200
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Chinese civilization along the Yellow and Yangtze Rivers (2200 BCE).

Original toplevel document

Human history - Wikipedia
[43][44] followed by Egyptian civilization along the Nile River (3000 BCE),[9][45] the Harappan civilization in the Indus River Valley (in present-day India and Pakistan; 2500 BCE),[46][47] and <span>Chinese civilization along the Yellow and Yangtze Rivers (2200 BCE).[10][11] These societies developed a number of unifying characteristics, including a central government, a complex economy and social structure, sophisticated language and writing system

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