一、“经典”中的改用“公历”中华书局版《中国近代史》应是大学历史专业较常选用的历史教科书,在1977年的第1版中写道:“1912年1月1日,孙中山在南京就任临时大总统,宣告中华民国临时政府成立。从这天起,改用公历,以1912年为民国元年。”~([1])到最新的第四版《中国近代中》基本维持同一表述。四个出版社依据2003年《普通高中历史课程标准(实验)》分别编著的历史必修1教科书~([2]),在较早的 First, the “classic ” in the switch “Chinese calendar” Zhonghua Bookstore version of “Chinese modern history” should be the university history major more commonly used history textbook, wrote in the first edition of 1977: “1912 On January 1, 2005, Sun Yat-sen took up the interim presidency in Nanjing and proclaimed the establishment of the interim government of the Republic of China. From that date onwards, the Gregorian calendar was changed to the first year of the Republic of China in 1912. ”~ ([1]) To the latest The fourth edition of “Modern China” basically maintains the same expression. According to the historical compulsory 1 textbook ~ ([2]) compiled by the four publishing houses in 2003, “General High School History Curriculum Standard (Experiment)”,