Before the 1950s, most carpets contained woven wool, which was significantly expensive at the time. American homeowners wanted carpeting in their living spaces, but only the wealthy could afford to have it. In 1947, the invention of synthetic fibers such as nylon revolutionized the carpet and flooring industry. These new materials provided a quicker way to manufacture carpeting than woven, woolen ones. By the early 1950s, carpeting became so affordable that it was the most popular flooring option for homeowners.