Pools for bathing and swimming go back at least as far as 2500 B.C.E. The first elaborate construction was The Great Baths of Mohenjodaro in Pakistan, which was used for religious ceremonies. In ancient Rome and Greece, swimming pools were an important part of society because they were used for many public and social activities. In Rome, swimming was part of the standard education of elementary age boys to physically train for war, and the Romans built miraculous, 900,000 square foot pools that were heated by giant fires beneath the pool floors.
Swimming pools grow in popularity
Swimming pools did not become popular until the middle of the 19th century. By 1837, six indoor pools with diving boards were built in London. Competitive swimming became new and exciting with interesting swimming styles and quick speeds. After the modern Olympic Games began in 1896 and swimming races were among the original events, the popularity of swimming pools began to spread.
Leaps in sciences and technology
In the 20th century, chlorination and filtration systems began delivering clean water into the pools. Prior to these developments, the only way to clean a pool was to remove and replace all the water. Materials were developed that allowed for faster and affordable installation, and more flexible design. The post-war rise of the middle-class, coupled with the relative affordability of pools accelerated pool proliferation even further. With the advent of Hollywood movies, swimming pools became a status symbol. Swimming pools became part of the American dream.