According to The Oral Traditions of Yangzhou Storytelling, several popular folktales about Wu Song, a Heavenly Spirit, from the "Wang School" of Yangzhou storytelling, state that he killed the tiger "in the middle of the tenth month" of the "Xuanhe year [1119]" (the emphasis belongs to the original author).Børdahl, Vibeke. The Oral Traditions of Yangzhou Storytelling. Richmond, Surrey: Curzon Press, 1996 ()
