《新五代史·本纪·唐本纪第七》
十九日，立沛国夫人刘氏为皇后。
丁巳，立沛国夫人刘氏为皇后。
On the 19th, Madame Liushi from the Princedom of Pei was established as the queen.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 丁巳，立沛国夫人刘氏为皇后。 [/INST] On the 19th, Madame Liushi from the Princedom of Pei was established as the queen.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 丁巳，立沛国夫人刘氏为皇后。
user
On the 19th, Madame Liushi from the Princedom of Pei was established as the queen.
assistant