Rosh Chodesh is the Hebrew term for the first day of a new month on the Jewish calendar. In ancient Israel, Rosh Chodesh began after two independent witnesses saw the new moon in the sky. Once their testimony had been verified, Jewish officials in Jerusalem would send word to other communities using messengers and signal fires. Learn more about this minor Jewish holiday and its special relationship to women in: What is Rosh Chodesh?
Image credit: Getty Images/Lorna Wilson