BASAVANNA

Source:  Life and Works of Basava or Basavanna 

Basava , also known as Basavanna (1106–1167)) was a philosopher and a social reformer, who fought against social evils of his time such as caste system and the ritual practices of Hinduism. His teachings and philosophy transcend all boundaries and address the universal and eternal. Basava was a great humanitarian, who advocated a new way of life, in which divine experience was at the center of life and where caste, gender and social distinctions carried no special importance. The cornerstone of his movement was the firm monotheistic belief in God as the absolute and universal supreme Self identified as Lord Shiva, and the equality and dignity of all individual beings irrespective of their social and gender status. 

 Basava - Wikipedia