Periyar Erode Venkata Ramasamy (Tamil: பெரியார், Kannada: ಪೆರಿಯಾರ್) (September 17, 1879 – December 24, 1973), also known as Ramaswami, EVR, Thanthai Periyar, or Periyar, was a Dravidian social activist, who founded the Self-Respect Movement and Dravidar Kazhagam.
Periyar was born in the Town of Erode, Tamil Nadu to a wealthy Nayakar family. At a young age, he witnessed numerous incidents of racial, caste and gender discrimination. Periyar married when he was 19, and had a daughter who lived for only 5 months. His first wife, Nagammai, died in 1933. Periyar married for a second time in July 1948. His second wife, Maniammai (also called Maniammai Ammaiyar), continued Periyar's social work after his death in 1973, but still his thoughts and ideas were being spread by Dravidar Kazhagam.
Periyar joined the Indian National Congress in 1919, but resigned in 1925 when he felt that the party was only serving the interests of the Brahmins. In 1924, Periyar led a non-violent agitation (satyagraha) in Vaikom, Kerala. From 1929 to 1932 toured Malaysia, Europe, and Russia, which had an influence on him. In 1939, Periyar became the head of the Justice Party,[1and in 1944, he changed its name to Dravidar Kazhagam. The party later split and one group led by C. N. Annadurai formed the Dravida Munnetra Kazhagam (DMK) in 1949. While continuing the Self-Respect Movement, he advocated for an independent Dravida Nadu (Dravidistan).Periyar propagated the principles of rationalism, self-respect, women’s rights and eradication of caste. He opposed the exploitation and marginalization of the non-Brahmin indigenous Dravidian peoples of South India and the imposition of, what he considered, Indo-Aryan India. His work has greatly revolutionized Tamil society and has significantly removed caste-based discrimination. He is also responsible for bringing new changes to the Tamil alphabet. However, at the same time, Periyar is also held responsible for making controversial statements on the Tamil language, Dalits and Brahmins and for endorsing violence against Brahmins. The citation awarded by the UNESCO described Periyar as "the prophet of the new age, the Socrates of South East Asia, father of social reform movement and arch enemy of ignorance, superstitions, meaningless customs and base manners".