《后汉书·本纪·孝桓帝纪》
十一月，西河报告发现白虎。
十一月，西河言白菟见。
In the eleventh month, Xihe reported the appearance of a white tiger.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 十一月，西河言白菟见。 [/INST] In the eleventh month, Xihe reported the appearance of a white tiger.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 十一月，西河言白菟见。
user
In the eleventh month, Xihe reported the appearance of a white tiger.
assistant