premise: Ragtime was released in 1965.
hypothesis: Ragtime -- also spelled rag-time or rag time -- is a musical style that enjoyed its peak popularity between 1895 and 1918 . Ragtime is a 1981 American drama film , directed by Miloš Forman , based on 1975 historical novel Ragtime by E. L. Doctorow . Ragtime is a novel by E. L. Doctorow , published in 1975 .