Karl Franz Friedrich Chrysander was a German music historian, critic and publisher, whose edition of the works of George Frideric Handel and authoritative writings on many other composers established him as a pioneer of 19th-century musicology.
Friedrich Dürrenmatt was a Swiss author and dramatist. He was a proponent of epic theatre whose plays reflected the recent experiences of World War II. The politically active author's work included avant-garde dramas, philosophical crime novels, and macabre satire. Dürrenmatt was a member of the Gruppe Olten, a group of left-wing Swiss writers who convened regularly at a restaurant in the city of Olten.
Friedrich Engels was a German philosopher, historian, political theorist, critic of political economy, and revolutionary socialist. He was also a businessman, journalist, and Karl Marx's closest friend and collaborator.
Friedrich Heinrich Feuerbach was a German philologist and philosopher. In the 1840s, he played an important role disseminating materialist and atheist philosophy.
