A shofar (Hebrew: שופר) is a ram's horn used for Jewish religious purposes. It is most famously used on Rosh Hashanah, the Jewish New Year, and during other significant moments in the Jewish calendar. The shofar is blown in a series of blasts, each with its own name and significance. The practice of blowing the shofar dates back to biblical times and is deeply rooted in Jewish tradition and law. In other languages, the shofar is known as shofar in Yiddish, shofar in Ladino, and שופר in Modern Hebrew. The shofar serves as a call to repentance and a reminder of the binding of Isaac, where a ram was sacrificed in place of Isaac. It is also used to announce the arrival of the Messiah and to herald the coming of significant religious events.