Along Came the Refrigerator

Electric refrigerators began appearing in homes in the 1920s and became much more common through the 1930s.

At first they were expensive, but prices fell as more were made.

By the end of the 1940s, most American homes had one, and the iceman's visits came to an end.

Today we take cold food for granted, but it has only been possible at the flick of a switch for less than a century.