Anthropological Index Online is an online resource provided by the Royal Anthropological Institute of Great Britain and Ireland. The database is based on the journal holdings of The Anthropology Library at the The British Museum (Museum of Mankind) which receives periodicals in all branches of anthropology, from academic institutions and publishers around the world. Topics covered include anthropology, archaeology, ethnography and linguistics. During 2000 and early 2001, a retrospective conversion was undertaken which has added some 100,000 records dating back to 1957. These were originally published on paper as vols 1-22 of the Anthropological Index.