Let me tell you that my french website Mundane Astrology, devoted to the history of the world revealed by astrology. Approximately 500 of celestial themes nations, cities and historical figures from antiquity to the present day, with a sheet with historical and astrological commentary on the subject.
This site represents thirty years of research in the press, libraries and historical books the most advanced. It also contains tables of correspondence between calendars and all the necessary software to restore our astronomical ephemeris software.
[Moderator note - thread moved here, as recommending an astrological site.]