When did people start to swim for recreation?

How much rain doees the ocean get? Tapioca database operates in which name? How much water in a waterbed tube? Do backswimmers bite? How much alum to treat a pond 100 ft x 200 ft x 8 ft deep? Are pregnant women allowed at the deep end of the swimming pool? Is is ok to bath with soap in a swimming pool? Cost to install basic rectangler inground pool? How much sand is in a 26 inch sand filter? How can you fix an air lock in a pool filter and pump system? Which part of your body gets wet first when you go to bath? Does salt water pool water strip color from dyed hair? What is a overlap pool liner? Do girls like guys with wet or dry hair? Why is my hayward DE filter leaking from the top? What does a slashing hand motion from a waterskier mean? What are baolies? How can you lock water valve with round handle to prevent turning? Why do girls on swim teams wear 2 swimsuits? Which BEST describes Jerry's place among the boys swimming from the rocks?