1907 - Emil Fischer artificially synthesizes peptideamino acid chains and thereby shows that amino acids in proteins are connected by amino group-acid group bonds
... Ray Bolger, actor, singer, dancer (+ 1987)
January 18 - Cary Grant, actor (+ 1986)
January 22 - George Balanchine, choreographer (+ 1983)
January 26 - Ancel Keys, ...