History of the Northern Dynasties: Tuoba Gui (Emperor Daowu) ascended as King of Dai, offered sacrifices to Heaven, established a reign era, and held…
Tuoba Gui (Emperor Daowu) ascended as King of Dai, offered sacrifices to Heaven, established a reign era, and held a great assembly at Niuchuan.
帝即代王位，郊天建元，大會于牛川
Location: 北史 卷1 登國元年
Emperor Daowu, Tuoba Gui, ascended as Prince of Dai, held a great assembly at Niuchuan and established a reign era.
登國元年春正月戊申，帝即代王位，郊天，建元，大會於牛川。
Location: 魏書卷2·登國元年