Music of the Channel Islands for hundreds of years. Song in Jèrriais celebrates the language and its survival. Songs derived from French mark geographic identity and proximity to France, while songs derived from the UK and Ireland re-present Jersey's wider heritage. The development of tourism in the 19th century brought a demand for dance music in tea-rooms and hotels. Some local composers supplied songs and sheet music aimed at a tourist market. Claude Debussy composed part of "La Mer" in Jersey. John Ireland settled for a time in Guernsey. The Channel Islands Music Council was founded in 1974 to promote music in the islands. In
History of water supply and sanitation was invented by Alexander Cummings in 1775 but became known as the U-bend following the introduction of the U-shaped trap by Thomas Crapper in 1880. The first screw-down water tap was patented in 1845 by Guest and Chrimes, a brass foundry in Rotherham. Founders of microscopy, Antonie van Leeuwenhoek and Robert Hooke, used the newly invented microscope to observe for the first time small material particles that were suspended in the water, laying the groundwork for the future understanding of waterborne pathogens and waterborne diseases. Sir Francis Bacon attempted to desalinate sea water by passing the flow through a sand