CONTRIBUTIONS & INVENTIONS : INDUS VALLEY & MESOPPTAMIA : The Sumerians developed the first form of writing called “cuneiform” to maintain business records. The Indus Valley Civilization, also known as Harappan civilization, developed the first accurate system of standardized weights and measures, some as accurate as to 1.6 mm. Harappans created sculpture, seals, pottery, and jewelry from materials, such as terracotta, metal, and stone.
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