Lesson 3 — The Twelve Signs

The twelve signs form the foundation for understanding how planets express their nature in a horoscope

Learn how the twelve zodiac signs shape the expression of the planets in traditional natal astrology, using sign classifications, rulers, and practical examples

A Fatal Law: Medieval Europe and the Astrological Renaissance

Adelard of Bath with his students—bridging Arabic science and European learning beneath the stars

Reintroduced to the Latin West in the 12th century, astrology positioned man at the center of the vast universe, and inspired Renaissance thinkers to investigate — and eventually uproot — concepts that had held sway for centuries