Today's OED antedating: "bull" (in bs sense)

Bull, slang, untruthful talk (n.4, sec 3, first use cited 1914): Untitled item by pseudonymous "HEK.," aka Hugh E. Keough, Chicago Tribune, September 11, 1910, p III-1, col 2: "Riddle: What character in 'Quo Vadis' do I resemble?/Answer: Ursus—he threw the bull."