But we can scarcely think the main conception late, as it is so widely scattered that it meets us in most mythologies, including those of Chaldaea and Egypt, and various North-American tribes.
This is a cycle of 18 years II days, or 223 lunations, discovered at an unknown epoch in Chaldaea, at the end of which the moon very nearly returns to her original position with regard as well to the sun as to her own nodes and perigee.
Kugler 7 that the various periods underlying their lunar predictions were identical with those heretofore believed to have been independently arrived at by Hipparchus, who accordingly must be held to have borrowed from Chaldaea the lengths of the synodic, sidereal, anomalistic and draconitic months.
In 1865 he published a history of Assyria and Chaldaea in the light of the results of the different exploring expeditions.
The expressions "Chaldaea r" and "Chaldaeans" are frequently used in the Old Testament as equivalents for "Babylonia" and "Babylonians."