When did diners become popular?

Diners became popular in the United States in the 1920s and 1930s, largely as a result of the rise of automobile culture and the need for quick, affordable meals on the go. The first diners were originally small, prefabricated structures serving simple fare, often open 24 hours. Their appeal grew during the post-World War II period as they became a quintessential part of American culture, symbolizing convenience and nostalgia. By the 1950s, diners had become iconic fixtures in many towns across the country.