M&M’s went on sale in Canada, Europe, Australia, Japan, Malaysia, the United Kingdom, and Hong Kong.
A black “M” is printed onto M&M’s to give them a unique look — it was changed to a white “M” in 1954.
The popular M&M tagline, "Melts in your mouth, not in your hand,” was released.
Forrest Mars Sr. started producing M&M’s at a factory in New Jersey
After seeing soldiers carry Smarties — chocolate pellets protected by a shell to keep them from melting —during the Spanish Civil War, Forrest Mars Sr., son of the Mars Company founder, pitched the idea of the candy we know today as M&M’s.