•   He was an Indian Vedic scholar and teacher (acharya), who propounded the Advaita Vedanta teachings.

•   He established four Shankaracharya Peeth, also referred to as four Mathas of Shankaracharya.

•   These Mathas in India were established by Adi Shankaracharya in the four cardinal directions.

•   Each of the four mathas of Shankaracharya was assigned one of the Vedas to study and propagate:

o  Sharada Peetham, Karnataka – Yajur Veda

o  Govardhana Matha, Odisha – Rig Veda

o  Dwaraka Pitha, Gujarat – Sama Veda

o  Jyotir Math, Uttarakhand – Atharva Veda

•   He was an Indian mathematician and astronomer who was the leader of a cosmic observatory at Ujjain, the main mathematical centre of ancient India.

•   His main work Siddhant-Shiromani, (Crown of Treatises) is divided into four parts called Lilavati, Bijaganit, Grahaganit and Goladhyaya.

•   These four sections deal with arithmetic, algebra, mathematics of the planets, and spheres respectively.