Question: Which of Tristan und Isolde and Saint François d'Assise was written first?
Sentence (from "Tristan und Isolde"): Wagner referred to the work not as an opera, but called it "eine Handlung" (literally "a drama", "a plot" or "an action"), which was the equivalent of the term used by the Spanish playwright Calderón for his dramas.
Relevant evidence: No