《资治通鉴·汉纪·汉纪三十一》
春季，正月，大司马刘秀因为王郎刚刚崛起，正处于兴盛状态，于是北向蓟州夺取土地。
春，正月，大司马秀以王郎新盛，乃北徇蓟。
In the spring, in the first month, Grand Marshal Liu Xiu attacked and took over land in the north in Jizhou because Wang Lang had just taken power and was at the height of his power.