Appendix I A CHRONOLOGICAL TABLE

[Note.—To find the equivalent date A. H. of any year A. D.:—From the year A. D. deduct 621.54 and to the remainder add 3 per cent. A. H. 1 = July 16th, 622 A. D., and the Moslem year consists of 12 lunar months. To find the equivalent date A. D. of a year A. H. multiply it by .970225 and to the remainder add 621.54. The sum gives the date A. D. of the end of the year A. H.]

413