《周書》和《北史》中《崔猷傳》都記載了有關崔猷奏請周明帝稱皇帝、建年號的一段文字。一直以來,人們以此和相關文獻記載都相信北周統治者“依《周禮》稱天王”是不建年號的。但通過考察、分析發現,北周統治者稱天王事實上存在有建年號的跡象。因此,北周諸帝稱天王不建年號或没有年號的説法也就成爲一個需要存疑、商討的問題。 “Zhou Shu” and “Northern History” “Cui Jie Biography” are recorded on the Cui Yong invited Zhou Mingdi emperor, built a passage. All along, people and related literature records believe that the ruler of the North Zhou Dynasty “according to” Zhou Li “King” is not built. However, through inspection and analysis, the ruler of the Northern Zhou Dynasty claimed that there were in fact signs of the founding of the King of Heaven. Therefore, the claims by the Northern Zhou dynasty that Uranus did not build or have no reign will become a question that needs doubts and discussions.