when did plumbing start
Standardized earthenware plumbing pipes with broad flanges making use of asphault for preventing leakages appeared in the urban settlements of the the indus valley civiliations by 2700 B.C. Plumbing originated during the ancient civilizations such as the Greek, Roman, Persian, Indian, and Chinese civilizations as they developed public baths and needed to provide portable water, and drainage of wastes.