《魏书·帝纪·卷九》
夏四月十六日，口厌哒国派使者朝贡。
夏四月乙丑，嚈哒国遣使朝贡。
On the 16th day of the 4th lunar month, the Habata country sent a messenger to offer tributes.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 夏四月乙丑，嚈哒国遣使朝贡。 [/INST] On the 16th day of the 4th lunar month, the Habata country sent a messenger to offer tributes.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 夏四月乙丑，嚈哒国遣使朝贡。
user
On the 16th day of the 4th lunar month, the Habata country sent a messenger to offer tributes.
assistant