The oldest form of astrology that we know of was practiced in Mesopotamia. Though, it was not a “horoscopic” astrology. It rather appears that the Mesopotamians worked with a system based on the intersection of the ecliptic with the celestial equator. Some authors, as the German Werner Papke, are convinced,
The Void Of Course (VOC) Moon
The Void Of Course (VOC) Moon is one of the most important concepts in traditional horary astrology, influencing directly the outcome of a question. Lilly writes in his Christian Astrology (p.112): A planet is Void of Course, when he is separated from a planet, nor doth forthwith, during his being