《后汉书·本纪·光武帝纪下》
初六，光武帝亲征颍川盗贼，都降附。
庚申，帝自征颍川盗贼，皆降。
On the sixth day, Emperor Guangwu personally led a punitive expedition against the bandits of Yingchuan County, and they all surrendered.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 庚申，帝自征颍川盗贼，皆降。 [/INST] On the sixth day, Emperor Guangwu personally led a punitive expedition against the bandits of Yingchuan County, and they all surrendered.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 庚申，帝自征颍川盗贼，皆降。
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On the sixth day, Emperor Guangwu personally led a punitive expedition against the bandits of Yingchuan County, and they all surrendered.
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