《隋书·帝纪·卷一》
开皇六年正月十三日，党项羌归附隋朝。
六年春正月甲子，党项羌内附。
On the 13th of January, in the sixth year of the Great Sui Dynasty, the Dangxiang Qiang tribe submitted to the Sui Dynasty.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 六年春正月甲子，党项羌内附。 [/INST] On the 13th of January, in the sixth year of the Great Sui Dynasty, the Dangxiang Qiang tribe submitted to the Sui Dynasty.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 六年春正月甲子，党项羌内附。
user
On the 13th of January, in the sixth year of the Great Sui Dynasty, the Dangxiang Qiang tribe submitted to the Sui Dynasty.
assistant