What does main drag mean in the 1920s?

In the 1920s, "main drag" referred to the primary street or thoroughfare in a town or city where social activities, commerce, and entertainment were concentrated. It was often the hub for shopping, dining, and nightlife, reflecting the vibrant cultural and social changes of the Roaring Twenties. The term conveyed a sense of community and the bustling energy of urban life during that era.