Tibetan Astrology: History and Lineages
Dr. Alexander Berzin
The Bon system of astrology was amalgamated with the Chinese astro materials that first came to Tibet in the mid-7th century. In the 11th century, with the introduction of the “Kalachakra Tantra” from India, its astro traditions were added as well to make the unique blend of Tibetan-Mongolian astro sciences.