Digvijay Diwas, on September 11, commemorates Swami Vivekananda's historic address at the World's Parliament of Religions in Chicago on that date in 1893, where he represented Hinduism and opened with “Sisters and Brothers of America.” His speeches stressed religious tolerance, universal acceptance and peaceful coexistence. Born Narendranath Datta on 12 January 1863 in Kolkata, he was a chief disciple of Sri Ramakrishna Paramahamsa and an exponent of Vedanta and Yoga. He founded the Ramakrishna Mission in 1897 and died on 4 July 1902, aged 39. His birthday is celebrated as National Youth Day.