write two basic feature of indus valley civilisation
Indus Valley Civilisation At its peak, the Indus Civilisation may have had a population of over five million.[8] Inhabitants of the ancient Indus River valley developed new techniques in handicraft (carnelian products, seal carving) and metallurgy (copper, bronze, lead, and tin). The Indus cities are noted for their urban planning, baked brick houses, elaborate drainage systems, water supply systems, and clusters of large non-residential buildings.[9] Children's toys were found in the cities, with few weapons of war, suggesting peace and prosperity.[10] Their trade seals, decorated with animals and mythical beings, indicate they conducted thriving trade with lands as far away as Sumer in southern Mesopotamia.[10]