EntityQ92219· pop 11· linked from 10 articlesErnst KappSign in to saveGerman teacher, geographer and philosopher (1808-1896)ConnectionsAristotleEntityInternational Standard Book NumberEntitySan AntonioEntityWayback MachineEntityMarshall McLuhanEntityfreethoughtEntityCarl RitterEntitygeographerEntityphilosophy of technologyEntityTexas State Historical AssociationEntitySisterdaleEntityCategories1808 births1896 deaths19th-century American geographers19th-century American male writers19th-century German geographers19th-century German male writers19th-century German philosophersAmerican abolitionistsAmerican philosophers of technologyEmigrants from the German Confederation to the United StatesFreethought writersGerman abolitionists