《宋史·本纪·卷二十一》
十八日，追册贵妃刘氏为皇后，溢号为明达。
戊戌，追册贵妃刘氏为皇后，谥曰明达。
On the eighteenth day, the late imperial consort Liu was posthumously promoted to the status of empress. Her posthumous title was Mingda.
<s>[INST] Convert the following English text into Classical Chinese: On the eighteenth day, the late imperial consort Liu was posthumously promoted to the status of empress. Her posthumous title was Mingda. [/INST] 戊戌，追册贵妃刘氏为皇后，谥曰明达。</s>
Convert the following English text into Classical Chinese: On the eighteenth day, the late imperial consort Liu was posthumously promoted to the status of empress. Her posthumous title was Mingda.
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戊戌，追册贵妃刘氏为皇后，谥曰明达。
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