On this day, 92 years ago, May 22, 1933 (April 28, 1933, the lunar calendar), Chen Jingrun's birthday. Chen Jingrun, a native of Fuzhou, Fujian, was born on May 22, 1933. Researcher, member of the Faculty of China Academy of Sciences. Graduated from Xiamen University in 1953 and stayed there to work in a library. After 1957, he served successively as assistant researcher and researcher at the Institute of Mathematics, China Academy of Sciences. He is a member of the Department of Mathematics and Physics of China Academy of Sciences. The paper published in 1973,"Large Even Numbers are the Sum of the Product of a Prime Number and No More than Two Primes"(i.e."1 2"), took a big step forward in the proof of Goldbach's conjecture and was promoted by the international academic community. It is called "Chen's Theorem". He is the author of "Interesting Talk on Mathematics","Combinatorial Mathematics", etc. He passed away on March 19, 1996.