The Foundation of Baghdad — Tropical versus Sidereal

Anthony Louis - Astrology & Tarot Blog

According to James Holden, the city of Baghdad was founded according the the principles of electional astrology to place the greater benefic Jupiter close to the Ascendant at approximately 2:40 PM LMT:

“...the 11th century astronomer/astrologer/scholar al-Bîrûnî has preserved the foundation chart of the city of Baghad.  The Caliph al-Mansûr (c.679-777) desired to build a new capital city.  He told his court astrologer, Nawbakht the Persian (c.679-777), to select a favorable time to begin construction. Nawbakht, with the assistance of the young Mâshâ’allâh (c.740-c.815) and other prominent astrologers of the time, selected the early afternoon of 4 Jumada I 145 A.H., which is equivalent to Saturday 31 July 762 in the Julian calendar.”

I have no idea whether 4 Jumada I 145 A.H. is accurately converted to July 31, 762 Julian.  Holden presents a chart in the tropical zodiac with Mars in early Gemini mutually…

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