《旧唐书·本纪·卷二十》
四月初一，汴州军队大举进攻太原，氏叔琮率领三万名士卒从天井关进攻泽潞，泽潞节度使孟迁率上党投降。
四月癸丑朔，汴军大举攻太原，氏叔琮以兵三万由天井关进攻泽潞，节度使孟迁以上党降。
On the first day of April, the Bianzhou army launched a major attack on Taiyuan. Shi Shuzong led 30,000 soldiers to attack Zelu from天井关. Meng Qian, the Jiedushi of Zelu, surrendered Shangdang.
<s>[INST] Take each pair of old and new sentences and unite them into a single translation that captures the core meaning: Archaic: 四月癸丑朔，汴军大举攻太原，氏叔琮以兵三万由天井关进攻泽潞，节度使孟迁以上党降。 Updated: 四月初一，汴州军队大举进攻太原，氏叔琮率领三万名士卒从天井关进攻泽潞，泽潞节度使孟迁率上党投降。 [/INST] On the first day of April, the Bianzhou army launched a major attack on Taiyuan. Shi Shuzong led 30,000 soldiers to attack Zelu from天井关. Meng Qian, the Jiedushi of Zelu, surrendered Shangdang.</s>
Take each pair of old and new sentences and unite them into a single translation that captures the core meaning: Archaic: 四月癸丑朔，汴军大举攻太原，氏叔琮以兵三万由天井关进攻泽潞，节度使孟迁以上党降。 Updated: 四月初一，汴州军队大举进攻太原，氏叔琮率领三万名士卒从天井关进攻泽潞，泽潞节度使孟迁率上党投降。
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On the first day of April, the Bianzhou army launched a major attack on Taiyuan. Shi Shuzong led 30,000 soldiers to attack Zelu from天井关. Meng Qian, the Jiedushi of Zelu, surrendered Shangdang.
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