The climax of Analysis came with Wilamowitz, who published "Homerische Untersuchungen" ("Homeric studies") in 1884 and "Die Heimkehr des Odysseus" ("The homecoming of Odysseus") in 1927. The "Odyssey", he argued, was compiled about 650 BCE or later from three separate poems by a "Bearbeiter" (editor). Subsequent Analysts often referred to the hypothesised "Bearbeiter" as the "B-poet" (and the original genius, Homer himself, was sometimes the "A-poet"). Wilamowitz' examination of the relationship between these three layers of the "Odyssey", further complicated by later, minor, interpolations, is enormously detailed and complex. One of the three poems, the "old "Odyssey"" (most of books 5-14 and 17-19) had in turn been compiled by a "Redaktor" from three even earlier poems, two of which had originally been parts of longer poems. Like most other scholars caught up in the opposition between Analysis and Unitarianism, Wilamowitz equated poetry that he thought poor with late interpolations. But Wilamowitz set such a high standard in the sophistication of his analysis that 20th century Analysts seem to have found difficulty in moving forward from where Wilamowitz left off; and over the course of the following decades attention drifted away, particularly in the English-speaking world.