Friedrich Eduard Bilz
Friedrich Eduard Bilz (June 12, 1842 – January 30, 1922) was a German naturopath who was a native of Arnsdorf in the Kingdom of Saxony. As a merchant of a "Kolonialwarenladen" (shop offering non-European goods) in Meerane, Bilz became interested in naturopathic medicine. In 1888 he published "Das Neue Naturheilverfahren" (The New Natural Healing), a book that became very popular and was translated into twelve languages. In 1895 Bilz founded a health spa at Radebeul that was soon expanded into a large sanitarium. In the early part of the 20th century, he constructed a "Licht-Luft Bad  (a large outdoor swimming pool) at the sanitarium (the Bilzbad"). In 1911 he displayed a "Wellenmaschine" (wave machine) at the International Hygiene Exhibition in Dresden. It was installed at Bilzbad during the following year. In 1902, Bilz created a soft-drink named "Bilz-Brause", a beverage consisting of mineral water and citrus juice that was served to patients at the sanitarium. After forming a partnership with local industrialist Franz Hartmann, the name was changed to Sinalco, and the drink was marketed worldwide.