《宋史·本纪·卷二十》
二十日，把九鼎安放在九成宫。
甲申，奠九鼎于九成宫。
On the twentieth day, the Nine Cauldrons were installed in the Jiucheng Palace.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 甲申，奠九鼎于九成宫。 [/INST] On the twentieth day, the Nine Cauldrons were installed in the Jiucheng Palace.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 甲申，奠九鼎于九成宫。
user
On the twentieth day, the Nine Cauldrons were installed in the Jiucheng Palace.
assistant