Nanjing University, abbreviated as "NU", is a long-established institution of higher learning. Trace the lineage of ancient origin of the Three Kingdoms Wu Yong'an first year of the Nanjing Imperial College, the modern history of the university began in 1902 to organize the Three Rivers Teachers College, through many changes, in 1949, the "National Central University" changed its name to "National Nanjing University", the following year the radius called "Nanjing University", which has been used ever since.