《资治通鉴·后唐纪·后唐纪一》
孔谦心中也不高兴。后唐把魏州升为兴唐府，在这里建东京，又在太原府建西京，同时把镇州升为真定府，建北都。
以魏州为兴唐府，建东京。又于太原府建西京，又以镇州为真定府，建北都。
Kong Qian was also unhappy. Later, Tang dynasty promoted Weizhou to Xingtangfu, built Dongjing here, and built Xijing in Taiyuanfu, and at the same time promoted Zhenzhou to Zhendingfu and built Beidu.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 以魏州为兴唐府，建东京。又于太原府建西京，又以镇州为真定府，建北都。 [/INST] Kong Qian was also unhappy. Later, Tang dynasty promoted Weizhou to Xingtangfu, built Dongjing here, and built Xijing in Taiyuanfu, and at the same time promoted Zhenzhou to Zhendingfu and built Beidu.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 以魏州为兴唐府，建东京。又于太原府建西京，又以镇州为真定府，建北都。
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Kong Qian was also unhappy. Later, Tang dynasty promoted Weizhou to Xingtangfu, built Dongjing here, and built Xijing in Taiyuanfu, and at the same time promoted Zhenzhou to Zhendingfu and built Beidu.
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