Suburbs began to spring up around the United States after World War II, as many military personnel would need housing after the war had ended. These house were cheaper than most apartments, and were appealing to those coming back from the war, an those looking for their own place to live. Not only were these house cheap for the homeowner, but they were very cheap to create as well. William Levitt, a pioneer in the building of suburbs during the 1950's, reached a peak of building up to 36 houses a day. Suburbs sprung up like rapid fire with an alarming rate, but were not without critics and problems. African Americans were not allowed to live in the suburbs being built, and because of the very small variety being used when making the communities, uniformity was a problem. Homeowners had to mow their lawn and keep their neighborhood looking complete and normal.