In 1940, Forrest E. Mars, Sr., returns to the United States and establishes M&M'S Limited in Newark, New Jersey. M&M'S Plain Chocolate Candies were introduced in 1941.
M&M's are the flagship product of the Mars Wrigley Confectionery division of Mars, Incorporated. The candy originated in the United States in 1941, and M&M's have been sold in over 100 countries since 2003. They are produced in different colors, some of which have changed over the years.
