Excerpt from The Caliphate: Its Rise, Decline, and Fall, From Original Sources The reader will bear in mind that the Moslem year, as purely lunar, is eleven days shorter than the solar, and consequently loses about three years in every cycle of a hundred. The lunar month has also this peculiarity, that while, like the Jewish, the date indicates the age Of the moon, the month itself gives no indication Of the season Of the year. The dates have usually been given throughout according to both the Moslem and the Christian notation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.