南宋成淳七年(1271年)8月25日,意大利东部沿海城市安科拉的犹太人雅各来到当时世界最繁荣的港口城市——刺桐(泉州)。他在刺桐度过了充满传奇色彩的半年时间,并用古意大利文写下了《光明之城》手稿。1990年12月,英国著名的学者大卫·塞尔本在意大利乌尔比诺见到手稿。1991年9月 Seven years of the Southern Song Dynasty into the Chun (1271) August 25, the Italian eastern coastal city of Ancolorah Jacob came to the world’s most prosperous port city - Calycanthus (Quanzhou). He spent half a year of legendary time on the thorn and wrote the manuscript of “The City of Light” in Old Italian. In December 1990, David Selburn, a famous British scholar, met the manuscript in Urbino, Italy. September 1991