Historians use the word “boom” to describe a lot of things about the 1950s: the booming economy, the booming suburbs and most of all the so-called “baby boom.” These 40 stunning color photographs below were taken by photographer Walker Evans through window of a train; they give us a glimpse into what the United States looked like in the early 1950s. What did you think? Please tell us in the comment section below and remember to sign up for our free newsletter.