1971
The Egg McMuffin sandwich was test marketed in the US as McDonald's first breakfast menu item.
McDonald's Japanese President, Den Fujita, stated "the reason Japanese people are so short and have yellow skins is because they have eaten nothing but fish and rice for two thousand years"; "if we eat McDonald's hamburgers and potatoes for a thousand years we will become taller, our skin become white and our hair blonde".
1940 with a restaurant opened by siblings Dick and Mac McDonald,

1954 Ray Kroc became the first franchisee appointed by Mac and Dick McDonald in San Bernardino, California. (15 cent hamburgers)

1963 One billion hamburgers sold.