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8 events, 1879 to 1979; 5 marked as turning points.
1879
Birth of E. V. Ramasamy (Periyar)
E. V. Ramasamy, later known as Periyar, founder of the Self-Respect Movement and the Dravidar Kazhagam, was born at Erode.

1944
Justice Party becomes Dravidar Kazhagam at Salem
Meeting at Salem, the Justice Party, now led by Periyar, took the name Dravidar Kazhagam and gave up contesting elections.

1947
Periyar calls Independence Day a day of mourning
Periyar called for 15 August 1947 to be kept as a day of mourning, a stand Annadurai rejected, deepening the rift between them.

India becomes independent; Madras Province
India gained independence and the Madras Presidency became Madras Province of the Dominion of India; Periyar called it a day of mourning.

1949
Dravida Munnetra Kazhagam founded
Breaking away from Periyar's Dravidar Kazhagam, C. N. Annadurai and his associates formed the DMK in Madras.

1953
Rajaji's Modified Scheme of Elementary Education
Rajaji's two-shift school scheme, criticised as Kula Kalvi Thittam (hereditary education), triggered protests and was later dropped.

1973
Death of Periyar E. V. Ramasamy
Periyar E. V. Ramasamy, founder of the Self-Respect Movement and leader of the Dravidar Kazhagam, died in Vellore aged 94.
1979
Income ceiling introduced for backward class reservation
The MGR government introduced an annual income ceiling to exclude better-off families from backward class reservation.