This is the calendar FAQ. Its purpose is to give an overview
of the Christian, Hebrew, and Islamic calendars in common
use. It will provide a historical background for the Christian
calendar, plus an overview of the French Revolutionary
calendar, the Maya calendar, and the Chinese calendar.
Comments are very welcome. My e-mail address is given above.
I would like to thank
Dr. Monzur Ahmed of the University of Birmingham, UK,
Michael J Appel,
David B. Kelley of the Hamamatsu University School of
Medicine in Japan,
James E. Morrison,
Waleed A. Muhanna of the Fisher College of Business,
Columbus, Ohio, USA,
Yves Sagnier of the Centre d'Etudes de la Navigation
Paul Schlyter of the Swedish Amateur Astronomer's Society
Dates will be written in the British format (1 January)
rather than the American format (January 1). Dates will
occasionally be abbreviated: ``1 Jan'' rather than ``1 January''.
Years before and after the ``official'' birth year of Christ
will be written ``45 BC'' or ``AD 1997'', respectively. I prefer
this notation over the secular ``45 BCE'' and ``1997 CE''
(See also section 2.13.4.)