How Does the Jewish Calendar Work? A Brief History of the Hebrew Calendar

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Although most of the world relies on the Gregorian calendar, traditional lunar and lunisolar calendars are often used alongside the Gregorian calendar, allowing certain countries or faith groups to mark national holidays and religious observances. More commonly referred to as the Hebrew calendar, the Jewish calendar is one of those lunisolar methods of date-keeping. 

As you might know, it determines when practitioners of Judaism will observe religious events, such as holidays and days that commemorate the passing of a relative, and helps specify Torah readings and daily Psalm readings. Here, we’re looking at the history of the Hebrew calendar, how it differs from the Gregorian calendar, and how it is used today.