《资治通鉴·梁纪·梁纪十三》
春季正月，戊申朔，梁武帝下令大赦天下，改年号为大同。
高祖武皇帝十三大同元年
In the first month of spring, the first day of the month Wushen, Emperor Wu of Liang Dynasty issued an imperial pardon to all under heaven and changed the reign title to Datong. 