We probably know something of Harappa and Mohenjo-Daro from our text books. The remains of these ancient cities are in modern day Pakistan. These were the key centers of the Indus Valley civilization. These also appear to have suddenly sprung up with no clear-cut traces of having evolved from primitive beginnings. The ruins of these ancient Indus Valley cities are immense. They are thought to have contained well over a million people each. In place was a system of town planning with straight streets and rectangular blocks,as well as wide main streets like modern boulevards. There were also heated public baths. At Mohenjo-Daro there has been uncovered a network of canals, pipes and sewers, with inspection peepholes, ingeniously devised. This city enjoyed an efficient drainage system and a highly efficient piped water supply, with pipes and drains under every street. And there was a sewage system from each house, as good as that of the present day.Jewels, rings, bracelets and necklaces of gold, silver and ivory, were worn. They were kept in elegant silver caskets and so well finished and so highly polished that they might have come out of a Bond Street jeweller’s.Business transactions were recorded and statistics kept. --- text content from "http://www.beforeus.com/indusa.htm" "ANCIENT CITY FOUND, IRRADIATED FROM ATOMIC LAST"