80 Years Ago—May 15, 1940: At Gembloux, Belgium, Germans lose 250 tanks to French artillery, but the French are forced to fall back as Belgian troops retreat.
Britain reduces weekly butter ration from 8 ounces to 4 ounces per person.
The McDonald brothers open McDonald’s Bar-B-Que in San Bernardino, CA, the precursor of the fast food restaurant.
In the US, nylon stockings first go on the market, made by DuPont. [Read more: Stocking Shortages in World War II]
75 Years Ago—May 15, 1945: Turning point in China—Chinese troops have Japanese forces in full retreat; by the end of the month, the Japanese will be pushed north of the Yellow River.