Opus number developed other catalogue-number systems; among them the "Bach-Werke-Verzeichnis" (BWV-number), and the "Köchel-Verzeichnis" (K- and KV -numbers) with which are organised the works of Johann Sebastian Bach and Wolfgang Amadeus Mozart, respectively. In the classical period, the Latin word "opus" ("work", "labour") was used to identify, list, and catalogue a work of art. By the 15th and 16th centuries, the word "opus" was used by Italian composers to denote a specific musical composition, and by German composers for collections of music. In compositional practise, numbering musical works in chronological order dates from 17th century Italy, especially Venice. In common usage, the
Japan Photographic Society (19th century) Japan Photographic Society (19th century) The was a Tokyo-based organization of photographers founded in 1889 that continued until the closing years of the nineteenth century. The JPS started as Japan's first organization for amateur photographers, although professionals later joined as well. Of the fifty-six founding members, twenty-four were foreigners, and among these W. K. Burton served as secretary. The JPS arranged various photographic activities: criticism, modeling sessions, exhibitions and so forth. The members' works were published in the magazine "Shashin Shinpō." The society seems to have folded at some time shortly after 1896, as a result of the bankruptcy of