As early as in the middle of the 7th century,Islam was introduced into China.Having spread and developed for 1300 yerars,going through the Tang,Song,Yuan,Ming and Qing dynasties and the Republic Period(618-1949A.D.),Isalm has developed more than 20 million followers (Muslims)in China.It was called by different names in different historic periods.In the Tang Dynasty(618-907A.D.),Islam was called"Dashi Jiao"(religion of Dashi.Arabs were called Dashi then); in the Ming Dynasty(1368-1644 A.D.),it was called"Tianfang Jiao"(religion of Arabia),or "Hui Hui Jiao"(religion of the Hui Huis.Muslims of various ethnic backgrounds were generally called Hui Hui then); at the end of the Ming Dynasty and the beginning of the Qing Dynasty(1616-1911 A.D.),it was called"Qingzhen Jiao"(pure and true religion); in the Republic Period(1912-1949 A.D.),it was called "Hui Jiao".

　　本書為英文版。