In the opening episode of Season 3, Sara & Adithya discuss the brief history of how Astrology came to be, among other things.

Sources:

Battistini, M. (2007). Astrology, Magic, and Alchemy in Art. United States: J. Paul Getty Museum.

Campion, N. (2008). A history of western astrology volume I: The ancient and classical worlds. Bloomsbury Publishing.Campion, Nicholas and Gale Dreyer, Ronnie, ‘Indian Astrology’, in David Kim (ed.), Modern History of Asian Religions, Leiden: Brill, 2015, pp 163-191

Holden, J. H. (2006). A History of Horoscopic Astrology. United States: American Federation of Astrologers.