Nephrite as a surface treatment. A lot of nephrite tools and amulets are known since the Early Neolithic (VII mill. BC) to the Late Chalcolithic (V mill. BC) on the Balkans (mainly Bulgaria; also in Greece, Serbia, Croatia) from two or more unknown sources - Balkan "nephrite culture". Such tools are found in the Later Neolithic of Poland (from the most probable local source Jordanów), Sardinia (Italy) (unknown source) and Switzerland (Kostov, 2005; 2013). Single or just a few finds of nephrite artifacts are reported also from some other European countries. During Neolithic times, the key known sources of nephrite jade
Forms of juggling Forms of juggling Juggling practice has developed a wide range of patterns and forms which involve different types of manipulation, different props, numbers of props, and numbers of jugglers. The forms of juggling shown here are practiced by amateur, non-performing, hobby jugglers as well as by professional jugglers. The variations of juggling shown here are extensive but not exhaustive as juggling practice develops and creates new patterns on a regular basis. Jugglers do not consciously isolate their juggling into one of the categories shown; instead most jugglers will practice two or more forms, combining the varieties of juggling practice. Some