Bailiwick of Guernsey over the centuries. "Warden", "Keeper" and "Captain" have previously been used. The Bailiff stands in for the Governor, or more recently the Lieutenant Governor, if the latter is absent, for a short term or for longer, for instance during the five years of the German occupation of the Channel Islands. The Lieutenant Governor of Guernsey is the Lieutenant Governor of the Bailiwick of Guernsey and, being the personal representative of the British monarch, has usually had a distinguished military service. Originally the local courts in Guernsey were ""fiefs"" with the lord of the manor presiding. Before 1066, a superior court
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