754px-Marc_Edmund_Jones_001 Published February 15, 2018 at 754 × 1024 in Twelve Easy Lessons for Beginners | 0. Why Learn Ancient Astrology and Its History? Marc Edmund Jones played a central role in guiding the reformulation of astrology in the early 20th century. Marc Edmund Jones played a central role in guiding the reformulation of astrology in the early 20th century.