Gopal Baba Walangkar, also known as Gopal Krishna, (ca. 1840-1900) is an early example of an activist working to release the untouchable people of India from their historic socio-economic oppression, and is generally considered to be the pioneer of that movement. He developed a racial theory to explain the oppression and also published the monthly journal Vital-Vidhvansak, targeted at the Brahmanical Orthodoxy. Gopal Baba Walangkar was born into a family of Mahar caste around 1840 at Ravdul, near Mahad in what is now Raigad district, Maharashtra. He was related to Ramabai, who in 1906 married the polymathic social reformer, B. R. Ambedkar. In 1886, after serving in the army, Walangkar settled at Dapoli and became influenced by another early social reformer, Jyotirao Phule, thus being a link between two of the most significant reform families of the period. Walangkar was appointed to the local taluk board of Mahad in 1895, which displeased the members from the upper castes and caused considerable debate in newspapers. He died at Ravdal in 1900. The Aryan invasion theory was in vogue at this time. Walangkar extended Phule's version of this racial theory, that the untouchable people of India were the indigenous inhabitants and that the Brahmin people were descended from Aryans who had invaded the country. Walangkar claimed that "high-caste people from the south were 'Australian–Semitic non-Aryans' and African negroes, that Chitpavan Brahmans were 'Barbary Jews', and that the high-caste Marathas' forebears were 'Turks'". In 1888, Walangkar began publishing the monthly journal titled Vital-Vidhvansak (Destroyer of Brahmanical or Ceremonial Pollution), which was the first to have the untouchable people as its target audience. He also wrote articles for Marathi-language newspapers such as Sudharak and Deenbandhu, as well as composing couplets in Marathi that were intended to inspire the people. Having read Hindu religious texts, Walangkar concluded that caste was contrived by the Aryan invaders to control the Anaryans (indigenous people).