Take a tour of Unusual Facts About Soaps in Miami, United States - part of the World's Greatest Attractions travel video series by GeoBeats. Everyone likes soap to get clean, but few know that the main ingredients in many soaps are oils and animal fat. Soap as we know it has been around less than 2000 years, but the basic principle has existed since nearly 3000 B.C. The first soap factory was located in Isleworth, England, and was built in 1862, by a man named Francis Pears. Although they are widely used, anti-bacterial soaps are not any more effective than normal soaps and can actually be harmful. There are two main types of soap bars: synthetic detergent-style soaps and natural oil-based soaps.