The Star of David is a Jewish symbol, a six-pointed star used on flag of Israel; in Hebrew called Magen David (Shield of David), signifying God as the protector of David; ancient symbol historically used as magical symbol or decoration among many peoples; although it has no biblical or Talmudic authority, came into prominent use during Middle Ages among Jewish mystics, who ascribed magical powers to it; first used in Prague as official symbol of a Jewish community; almost universally adopted by Jews in 19th century as emblem of Judaism.