Erode Venkatappa Ramasamy (17 September 1879 – 24 December 1973), revered as Periyar[a] or Thanthai Periyar, was an Indian social activist and politician who started the Self-Respect Movement and Dravidar Kazhagam. He is known as the 'Father of the Dravidian movement'.[1] He rebelled against Brahminical dominance and gender and caste inequality in Tamil Nadu. Since 2021, the Indian state of Tamil Nadu celebrates his birth anniversary as 'Social Justice Day'.
Pandurang Sadashiv Sane (Marathi: पांडुरंग सदाशिव साने; Marathi pronunciation: ; 24 December 1899 – 11 June 1950), also known as Sane Guruji (Guruji meaning "respected teacher") by his students and followers, was a Marathi author, teacher, social activist and freedom fighter from Maharashtra, India. He is referred to as the
