《北史·本记·卷三》
十九日，在圆丘祭祀。
甲申，祀圆丘。
On the 19th, sacrifices were offered at the Yuanqiu Altar.
<s>[INST] Kindly elucidate the central themes in this passage in English: 甲申，祀圆丘。 [/INST] On the 19th, sacrifices were offered at the Yuanqiu Altar.</s>
Kindly elucidate the central themes in this passage in English: 甲申，祀圆丘。
user
On the 19th, sacrifices were offered at the Yuanqiu Altar.
assistant