《后汉书·列传·南蛮西南夷列传》
汉兴盛以后，将黔中郡改为武陵郡。
汉兴，改为武陵。
After the rise of the Han Dynasty, Qianzhong County was changed to Wuling County.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 汉兴，改为武陵。 [/INST] After the rise of the Han Dynasty, Qianzhong County was changed to Wuling County.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 汉兴，改为武陵。
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After the rise of the Han Dynasty, Qianzhong County was changed to Wuling County.
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