《后汉书·本纪·孝献帝纪》
八月二十四日，任光禄勋希阝虑为御史大夫。
八月丁未，光禄勋郗虑为御史大夫。
On the 24th day of the eighth month, Ren Guangluzun Xilu was appointed as an imperial censor.
<s>[INST] Kindly elucidate the central themes in this passage in English: 八月丁未，光禄勋郗虑为御史大夫。 [/INST] On the 24th day of the eighth month, Ren Guangluzun Xilu was appointed as an imperial censor.</s>
Kindly elucidate the central themes in this passage in English: 八月丁未，光禄勋郗虑为御史大夫。
user
On the 24th day of the eighth month, Ren Guangluzun Xilu was appointed as an imperial censor.
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