After WWII, in the 1950's, there was a boom in the U.S. housing market as new immigrants and returning soldiers sought to live "The American Dream". Part of this 'dream' included every family owning its own home, a car, and automated appliances that eased the workload of the homemaker. Due to technological advances in fabrication, the housing industry in the 1950's and 1960's was able to provide affordable homes to the masses. One reason was the invention of prefabricated homes, or prefabs. Most pieces of a prefab home are built at the factory, including major parts like the walls and roof. The prefab pieces are trucked to the building site and quickly assembled. This method proved cheaper for the housing industry and houses became more affordable. Prefabs feature complete indoor plumbing, bathroom, central heating, and electrical wiring.