Anténor Joseph Firmin was born in Cap-Haïtien in northern Haiti. He was a gifted child who attended Haiti's premier preparatory schools. After studying law, Firmin became the inspector of schools in Cap-Haïtien. He married Rosa Salnave, daughter of the former president Sylvain Salnave, in 1881. Two years later the government of Haiti sent Firmin to France as a diplomat. He was admitted to the Anthropological Society of Paris and became perhaps the first scholar of African descent to write a systematic work of anthropology.
In 1885 he published The Equality of the Human Races, a response to Count Arthur de Gobineau's four-volume set The Inequality of Human Races and to the racialist anthropology of the nineteenth century. Published between 1853 and 1855 de Gobineau s famous work was the first to assert the racial superiority of Aryan peoples while simultaneously reinforcing ideas of black inferiority Firmin ...