Jubilee (biblical) it was thought that the English term "Jubilee" derives from the Hebrew term "yobel" (via Latin ""), which in turn derives from "yobhel", meaning "ram"; the Jubilee year was announced by a blast on a shofar, an instrument made from a ram's horn, during that year's Yom Kippur. An alternative etymology notes that the Latin verb "iūbilō", "shout for joy," predates the Vulgate, and proposes that instead the Latin "jubilo" (meaning "shout"), as well as Middle Irish "ilach" (victory cry), New English "yowl", and Ancient Greek "iuzo" (ἰύζω: shout), derived from the Proto-Indo-European root "*yu-" (shout for joy). In this
German horn each with the two sides an octave apart. In the twentieth century German horn makers devised further variations on the double-horn pattern. One of these was the "omnitonic" horn invented by Hermann Prager in 1918 and built by Knopf of Markneukirchen, but its complicated mechanism made the instrument very heavy. A more successful model which added a valve to lower both sides of the instrument by a semitone (from B to A and from F to E) was patented by Paul Geyer of Schwerin in 1924. The extra valve not only made playing difficult passages in sharp keys easier, but