If one were to speak of the “incipient period” of research on Western Zhou oracle bones, he would have to refer to that period of time after the discovery in 1950 at Sipanmo (SP 11) of oracle bones whose “writing was not consistent with inscriptional standards,” and before November of 1956 when Professor Li Xueqin pointed out that the inscribed oracle bones from Fangdui village of Shanxi's Hongzhao County were artifacts of the opening period of the Western Zhou. Through the study of these oracle bones discovered at Sipanmo and Fangdui village, as well as in Bin county in Shaanxi and Taishanmiao in Luoyang, it was then possible for the first time to recognize that in addition to Shang oracle bones there were also Western Zhou oracle bones, thus debunking the traditional belief that all oracle bones were produced by the Shang. The excavation in 1956 of inscribed oracle bones at Fengxi in Shaanxi then provided positive proof of the existence of Western Zhou oracle bones.