Chemical element of metals. Cu comes from Cuprum, Fe comes from Ferrum, Ag from Argentum. The symbols were not followed by a period (full stop) as with abbreviations. Later chemical elements were also assigned unique chemical symbols, based on the name of the element, but not necessarily in English. For example, sodium has the chemical symbol 'Na' after the Latin "natrium". The same applies to "W" (wolfram) for tungsten, "Fe" (ferrum) for iron, "Hg" (hydrargyrum) for mercury, "Sn" (stannum) for tin, "K" (kalium) for potassium, "Au" (aurum) for gold, "Ag" (argentum) for silver, "Pb" (plumbum) for lead, "Cu" (cuprum) for copper, and
Au Peninsula Au Peninsula The Au Peninsula (German: Halbinsel Au) is located on the Swiss "Zürichsee" lake shore in the municipality of Au, Canton of Zürich. Au is a peninsula situated on the southwestern Zürichsee lake shore on the slope of the Zimmerberg plateau. In its south, between the headland and the peninsula, a small lake respectively a reed landscape to the north is situated. The area is located in the municipality of Au between Wädenswil and Horgen. Located on the Au peninsula, the Neolithic site named "Wädenswil–Vorder Au" was one of the numerous sites of Prehistoric pile dwellings around Zürichsee. At