River valley civilizations

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Yellow River civilization Hydraulic civilization

Why did the Nile flood cycle make Egyptian agriculture so much more predictable than Mesopotamian farming? How did Harappa and Mohenjo-daro manage urban drainage without any obvious royal monuments? Why are river deltas harder to excavate than desert sites? Why did cuneiform survive for three thousand years across so many languages? How did Nile floods make Egyptian farming predictable? How did river valley cities handle sewage and drinking water? How was the Old Kingdom pharaoh's power tied to the flood and the tax system built on it? How did the Grand Canal tie the rice surplus of the south to the capitals of the north? Why did the first cities appear in river valleys rather than on coasts? How did Sumerian city-states organize temple economies before any king ruled them all? River valleys made grain the unit of taxation and that shaped the state Why was Mesopotamian irrigation a collective project? How did floods shape kingship and legitimacy? How did river valleys feed craftsmen who never farmed? Did river valley civilizations invent writing for accounting?

Civilization Cradle of civilization History of Western civilization Civilizations by time Ancient Civilizations Global civilization Societal collapse Classical civilizations Theorists on Western civilization Bronze Age civilizations