788 ? - 820 ?
Indian Reformer

Shankara, also Sankara, philosopher and theologian, was born in Kerala in southern India. He became a Hindu ascetic and exponent of the Advaita Vedanta school of philosophy.

Shankara reformed Hinduism with a monistic interpretation of the Vedanta, which ascribed all reality to a single unitary source, which he identified as "Brahma". He declared all plurality and differentiation as nothing but an illusion.

www link :
The Life of Shankara