《明史·志·卷七》
又说： 《授时历议》根据《漠书，律历志》鲁献公十五年戊寅岁正月甲寅朔旦冬至，引用为首例。
又曰： 《授时历》议据《前汉志》鲁献公十五年戊寅岁正月甲寅朔旦冬至，引用为首。
But it also said: The "Shoushi Calendar" is based on the "Han Shu, Lvli Zhi", where in the fifteenth year of Duke Xian of Lu, the first day of the first month of the first month of the year, the winter solstice is quoted as the first example.