The [[Babylonia]]n Captivity (586 BC) severed the tie that the [[Israel]]ites (or to be more specific, the [[Southern Kingdom|Jews]]) had to the land. Living in exile in Babylonia, they came under the influence of Babylonia's [[astronomy|astronomers]] and learned their ways. At this time they developed a calculated calendar, with alternating 30 and 29-day months, and intercalated 30-day months every third, sixth, and eighth year. This solution served them well until about 350 AD, when they must have realized that the calendar had begun to drift. Hillel II devised the nineteen-year cycle that the Jews use today. | The [[Babylonia]]n Captivity (586 BC) severed the tie that the [[Israel]]ites (or to be more specific, the [[Southern Kingdom|Jews]]) had to the land. Living in exile in Babylonia, they came under the influence of Babylonia's [[astronomy|astronomers]] and learned their ways. At this time they developed a calculated calendar, with alternating 30 and 29-day months, and intercalated 30-day months every third, sixth, and eighth year. This solution served them well until about 350 AD, when they must have realized that the calendar had begun to drift. Hillel II devised the nineteen-year cycle that the Jews use today. |