~150 d.C.
Ptolemy and the Tetrabiblos
The signs are counted from the spring equinox, not from the stars.
The story
Claudius Ptolemy was an astronomer, mathematician and geographer in 2nd-century Alexandria. Besides the Almagest, his treatise on astronomy, he wrote the Tetrabiblos, the manual that ordered Hellenistic astrology into a written, reasoned system. For more than a thousand years it was the reference text in the Mediterranean, the Arab world and Europe.
Ptolemy argued for counting the signs from the spring equinox of the northern hemisphere, in equal thirty-degree stretches, and not from the constellations. That's the tropical zodiac: the one that sets Aries to begin around March 21 and the one Molino uses for your sun sign.
Origin
Alexandria (Roman Egypt)
Influence
How Molino uses it
The basis of the dates of your sun sign
Transparency
These historical traditions explore numbers and cultural symbols as a tool for personal reflection.
The interpretations belong to the symbolic and cultural field; they aren't scientific predictions. This map combines numerology, astrology and the Chinese zodiac in a transparent, educational way.
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