"Early scholars such as  Friedrich Ranke and Will Erich Peuckert followed Grimm's example in focussing solely on the literary narrative, an approach that was enriched particularly after the 1960s, by addressing questions of performance and the anthropological and psychological insights provided in considering legends' social context.Questions of categorising legends, in hopes of compiling a content-based series of categories on the line of the Aarne–Thompson folktale index, provoked a search for a broader new synthesis.