The Early History of plumbing
2500 B.C. - The Egyptians are adapt at drainage construction, accentuated by the significance, that water plays in their priestly rituals of purification and those affecting the burial of the pharaohs.
1760 B.C. - King Hammurabi of Babylon personally directs provincial governors, to dig and dredge the canals on a continuing basis and to prevent the neglect of those canals.
1700 B.C. - The Minoan place of Knossos, on the island of Crete, features four separate drainage systems, that empty into the great sewers constructed of stone.
800 B.C. - The first sewers of Rome, are built and called the Cloaca Maxima.
705 B.C. - The Assyrian king Sennacherib develops a 10 mile long canal, in three stages, including 18 fresh water courses, from the mountains, two dams, water diversions and a chain of canals
312 B.C. - Aqueducts, which supply water to Roman baths, are first built.
4th Century A.D. - Rome has 112 public baths, 1,352 public fountains and cisterns, and 856 private baths.
1596 A.D. - Sir John Harrington invents new "washout" closet, similar to the drainage principle on the isle of Crete.
1738 A.D. - J. F. Brondel introduces the valve-type flush toilet
1775 A.D. - Another Englishman, Alexander Cummings, patents the forerunner of the toilet.
1778 A.D. - Joseph Bramah patents an improved version of Cumming's invention, with two hinged valves. The "Bramah" also becomes the prototype, for closets on boats and ships.
1829 A.D. - The Tremont Hotel, of Boston becomes the first hotel to have indoor plumbing and has eight water closets, designed by Isaiah Rogers.
1848 A.D. - England passes the National Public Health Act, which becomes a model plumbing code, for the world, to follow.
1857 A.D. - The first packaged toilet paper is invented by American Joseph Gayetty and called Gayetty's Medicated Paper
1858 A.D. - George Jennings popularizes public lavatories.
1870 A.D. - Thomas Twyford comes up with an improved version of the Bramah, which contains no metal parts and is created with the revolutionary design of a one-piece toilet.