《元史·本纪·卷四》
世祖中统二年春，正月初九夜间，东北方有一赤色气团，光亮照人，大如一床席子。
二年春正月辛未夜，东北赤气照人，大如席。
In the spring of the second year of Emperor Shizu's Zhongtong reign, on the night of the ninth day of the first lunar month, a reddish air mass appeared in the northeast, shining brightly and as large as a mattress.
<s>[INST] First, translate the Classical Chinese text into modern Chinese and then into English. Classical Chinese: 二年春正月辛未夜，东北赤气照人，大如席。 [/INST] 世祖中统二年春，正月初九夜间，东北方有一赤色气团，光亮照人，大如一床席子。 Then, In the spring of the second year of Emperor Shizu's Zhongtong reign, on the night of the ninth day of the first lunar month, a reddish air mass appeared in the northeast, shining brightly and as large as a mattress.</s>
First, translate the Classical Chinese text into modern Chinese and then into English. Classical Chinese: 二年春正月辛未夜，东北赤气照人，大如席。
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世祖中统二年春，正月初九夜间，东北方有一赤色气团，光亮照人，大如一床席子。 Then, In the spring of the second year of Emperor Shizu's Zhongtong reign, on the night of the ninth day of the first lunar month, a reddish air mass appeared in the northeast, shining brightly and as large as a mattress.
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