While its roots stretch back in time to an ancient sage named Vamana Rishi, nearly 80 years ago the Ashtanga yoga system was passed to Sri K. Pattabhi Jois from the legendary yogi, T. Krishnamacharya. Since 1948, this Jois has been teaching this disciplined style of yoga from his Ashtanga Yoga Research Institute, located in Mysore, southern India, instructing many thousands of people worldwide.