Rosh Hashanah is the Jewish New Year. The biblical name for this holiday is Yom Teruah. It is the first of the Jewish High Holy Days, as specified by Leviticus 23:23–25, that occur in the late summer/early autumn of the Northern Hemisphere.
Rosh Hashanah begins a ten-day period of penitence culminating in Yom Kippur, as well as beginning the cycle of autumnal religious festivals running through Sukkot and ending in Shemini Atzeret in Israel and in Simchat Torah everywhere else.
Rosh Hashanah is a two-day observance and celebration that begins on the first day of Tishrei, which is the seventh month of the ecclesiastical year. In contrast to the ecclesiastical lunar new year on the first day of the first month Nisan, the spring Passover month which marks Israel's exodus from Egypt, Rosh Hashanah marks the beginning of the civil year, according to the teachings of Judaism, and is the traditional anniversary of the creation of Adam and Eve, the first man and woman according to the Hebrew Bible, as well as the initiation of humanity's role in God's world.