Ashtanga Yoga is an ancient system of Yoga that was taught by Vamana Rishi in the Yoga Korunta. This text was imparted to Sri T. Krishnamacharya in the early 1900’s by his Guru Rama Mohan Brahmachari, and was later passed down to Pattabhi Jois during the duration of his studies with Krishnamacharya, beginning in 1927.