Prehistoric India to 1000 B.C. c12.9

c12.9

Though none of the evidence is conclusive, yet the inference from the fauna, the wood needed to burn so many million bricks, and the implication of a flourishing agricultural background, all suggest a climate different from that of today, when at Mohenjo-daro the range in annual temperature is between 120° F. in summer to frost in winter, with a rainfall of less than 6 inches in the year. The very use of burnt brick as a building material instead of the sun-dried mud brick common to the Ancient East may imply the necessity of finding something more durable under conditions of frequent or considerable rainfall, and the elaborate system of drains in the cities may also be explained in connexion with a greater volume of rain-water.