Roger Bastide (Nîmes, 1 April 1898 - Maisons-Laffitte, 10 April 1974) was a French sociologist and anthropologist, specialist in sociology and Brazilian literature. The character Agliè in Umberto Eco's Foucault's Pendulum bears resemblance to Roger Bastide. Foucault's Pendulum (original title: Il pendolo di Foucault) is a novel by Italian writer and philosopher Umberto Eco. It was first published in 1988; the translation into English by William Weaver appeared a year later. Foucault's Pendulum is divided into ten segments represented by the ten Sefiroth. The novel is full of esoteric references to the Kabbalah, alchemy and conspiracy theory, so many that critic and novelist Anthony Burgess suggested that it needed an index.