Which socio-religious reformer founded the Arya Samaj in Bombay in 1875 with the slogan “Back to the Vedas”?

Swami Dayananda Saraswati social division of society into four Varnas: The Arya Samaj was established in Bombay Brahmana, Kshatriya, Vaishya, and Shudra. The in 1875 by the socio-religious reformer Swami hymn symbolically describes the cosmic creation Dayananda Saraswati. Championing a return of these four social orders from different parts of to Vedic purity, he gave the famous call “Back the sacrificed primeval cosmic being, Purusha. to the Vedas” and rejected idolatry, polytheism, untouchability, child marriage, and hereditary