In 1950, at the age of 29, he becomes professor at the newly created Osaka City University, a position he holds until 1956.

From 1954 on, he works at the University of Chicago, first as a research associate and later as a professor. In 1959, he starts working on spontaneous symmetry breaking as a mechanism for generating nucleon mass. He has proposed the “color charge” of quarks and is one of the founders of string theory. He retires in 1991 and is now Professor Emeritus.

He studies physics at the Imperial University of Tokyo from 1940 to 1942, graduating at the level of a M.S.

From 1952 to 1954, he stays at the Institute for Advanced Study in Princeton.

After the end of World War II, in 1946, he returns to the University of Tokyo as a kind of research associate. He receives his doctorate in 1952.

He grows up in the provincial city of Fukui.

He is then drafted into an army radar laboratory.

Yoichiro Nambu is born in Tokyo.

Yoichiro Nambu is awarded one half of the 2008 Nobel Prize in Physics “for the discovery of the mechanism of spontaneous broken symmetry in subatomic physics”, the other half going to Makoto Kobayashi and Toshihide Maskawa.

He marries Chieko Hida in 1945. The couple has a son.