'Head of the Year.' A festival which occurs on the Jewish New Year in which a shofar, an instrument made out of a ram's horn, is blown in remembrance of Abraham's readiness to sacrifice his son, Isaac to God. It also reminds them that God is the ruler and judge and that the people have to improve their ways. According to Jewish tradition, Rosh Hashanah is the birthday of the world. It is a day where the Jews pray not only for themselves, but for all mankind.