Midland was a young farming and ranching community on the southern edge of the Llano Estacado when the real-photo postcard era began near the opening of the 20th century. Businesses, residents, and promoters embraced this new technology to produce images capturing Midland's unusual rural-and-cosmopolitan mix. As postcards changed to linen and chrome, Midland also underwent dramatic changes. The city on the plains worked hard to become an indispensable part of the vast 1920s Permian Basin oil industry. In post–World War II years, Midland grew into an urban center of West Texas, positioned strategically at the midpoint of Interstate 20's path from Fort Worth to El Paso.