when did they start using pvc pipe for plumbing
Plumbing Plastic pipe is in wide use for domestic water supply and drain-waste-vent (DWV) pipe. Principal types include: Polyvinyl chloride (PVC) was produced experimentally in the 19th century but did not become practical to manufacture until 1926, when Waldo Semon of BF Goodrich Co. developed a method to plasticize PVC, making it easier to process. PVC pipe began to be manufactured in the 1940s and was in wide use for Drain-Waste-Vent piping during the reconstruction of Germany and Japan following WWII. In the 1950s, plastics manufacturers in Western Europe and Japan began producing acrylonitrile butadiene styrene (ABS) pipe. The method for producing cross-linked polyethylene (PEX) was also developed in the 1950s. Plastic supply pipes have become increasingly common, with a variety of materials and fittings employed.
Paris Peace Accords
Gilbert Gottfried In March 2011, Gottfried made a series of jokes on his Twitter account about the
Horse and buggy By the early 1910s, the number of automobiles had surpassed the number of buggies, but their use continued well into the 1920s in out of the way places.
Vietnam War North Vietnamese victory
Captain Underpants September 1, 1997 - August 25, 2015 (main series)