Ба, даже не 50, а 60! http://ru.wikipedia.org/wiki/%D0%A1%D1%83%D1%85%D0%BE%D1%80%D1%83%D0%BA%D0%BE%D0%B2,_%D0%92%D0%B8%D0%BA%D1%82%D0%BE%D1%80_%D0%98%D0%B2%D0%B0%D0%BD%D0%BE%D0%B2%D0%B8%D1%87