《晋书·志·第八章》
《命历序》上说：孔子为了研究《春秋》，曾专门研治殷朝的历法，使之可以传于后世。
《命历序》曰：孔子为治《春秋》之故，退修殷之故历，使其数可传于后。
The "Preface to Mingli" says: In order to study the "Spring and Autumn Annals", Confucius once studied the Yin dynasty's calendar, so that it can be passed down to future generations.
<s>[INST] First, translate the Classical Chinese text into modern Chinese and then into English. Classical Chinese: 《命历序》曰：孔子为治《春秋》之故，退修殷之故历，使其数可传于后。 [/INST] 《命历序》上说：孔子为了研究《春秋》，曾专门研治殷朝的历法，使之可以传于后世。 Then, The "Preface to Mingli" says: In order to study the "Spring and Autumn Annals", Confucius once studied the Yin dynasty's calendar, so that it can be passed down to future generations.</s>
First, translate the Classical Chinese text into modern Chinese and then into English. Classical Chinese: 《命历序》曰：孔子为治《春秋》之故，退修殷之故历，使其数可传于后。
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《命历序》上说：孔子为了研究《春秋》，曾专门研治殷朝的历法，使之可以传于后世。 Then, The "Preface to Mingli" says: In order to study the "Spring and Autumn Annals", Confucius once studied the Yin dynasty's calendar, so that it can be passed down to future generations.
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