This study explores how Anglophone fiction from the mid-Victorian period to the outbreak of the First World War acted as an imaginative testing-ground for theories of the evolution of language. Debates about the past development and the future of language ranged beyond the scope of empirical data and into speculative narrative. Fiction offered to realize such narratives in detail, building imaginative worlds out of different theories of language evolution. In the process, it also often tested these theories, exposing their contradictions. The lack of clear boundaries between nature and culture in language studies of the period enabled fictions of language evolution to explore questions to which contemporary researchers have returned. To wha...