"Historia de la lengua y literatura castellana, Tomo 1" by Julio Cejador y Frauca is a fourteen-volume work published between 1915 and 1922. This monumental study traces the history of both Spanish language and literature from their origins through 1920. Spanning over six thousand pages, it chronicles centuries of literary development and linguistic evolution, organized chronologically from the birth of Romance vernacular through the contemporary era. Though described as prolific yet flawed, it remains a comprehensive resource containing insights on authors that later literary histories overlook.