They were approximately contemporary with the mastabas of the archaic period of Egypt ( first and second dynasties ), the brick temples of Sumeria, and the first cities of the Harappa culture in India, and a century or two earlier than the Golden Age of China.

They were approximately contemporary with the mastabas of the archaic period of Egypt ( first and second dynasties ), the brick temples of Sumeria, and the first cities of the Harappa culture in India, and a century or two earlier than the Golden Age of China.

They were approximately contemporary with the mastabas of the archaic period of Egypt ( first and second dynasties ), the brick temples of Sumeria, and the first cities of the Harappa culture in India, and a century or two earlier than the Golden Age of China.

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