Chen Jingrun's Birthday

Source: http://www.google.com/logos/jingrun09.gif

Chen Jingrun (simplified Chinese: 陈景润; traditional Chinese: 陳景潤; pinyin: Chén Jǐngrùn; Wade–Giles: Ch'en Chingjun; Foochow Romanized: Dìng Gīng-ê̤ṳng, May 22, 1933 – March 19, 1996) was a Chinese mathematician who made significant contributions to number theory. Chen is ranked as one of the leading mathematicians in the twentieth century and one of China's most influential mathematicians in history. [Read more on Wikipedia]