《魏书·帝纪·卷十二》
二月丁卯，徐州人刘乌黑聚集民众反叛。
二月丁卯，徐州人刘乌黑聚众反。
In the second month, on ding mao day, Liu Uhei, a native of Xu Zhou, gathered a mob and rebelled.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 二月丁卯，徐州人刘乌黑聚众反。 [/INST] In the second month, on ding mao day, Liu Uhei, a native of Xu Zhou, gathered a mob and rebelled.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 二月丁卯，徐州人刘乌黑聚众反。
user
In the second month, on ding mao day, Liu Uhei, a native of Xu Zhou, gathered a mob and rebelled.
assistant