Easter and the Totem(1953) collapses back to Totem Lesson 1 (1944).
Easter and the Totem traces back to Totem Lesson 1 of 10 years before.
mnli hypothesis: Easter and the Totem traces back to Totem Lesson 1 of 10 years before. premise: Easter and the Totem(1953) collapses back to Totem Lesson 1 (1944).