Swimming is the act of moving through the water by using the arms, legs, and body in motions called strokes. The most common strokes are the crawl, backstroke, breaststroke, butterfly, and sidestroke.
Some scientists believe that human beings are born with an instinctive ability to use their arms and legs to stay afloat. That instinct, however, disappears within a few months after birth. Later in life many children and adults learn to swim in order to be safe around the water, to have fun, and to participate in competition.
Most people learn to swim by imitating others, most often their parents, brothers, sisters, and friends. Most youngsters in also take lessons at swim clubs, community centers, schools, and recreational facilities. In addition, the American Swim Coaches Association (ASCA) and the American Red Cross sponsor programs that teach children about water safety. Instructors teach students skills that will make them safe, efficient, and confident swimmers. Beginners first put their heads in the water and blow bubbles by exhaling. Gradually, students progress to floating, treading water, and ultimately, learning the techniques of the major strokes.
Individuals should not swim in conditions that their ability and experience will not allow them to handle. For inexperienced recreational swimmers, many safety hazards exist, even in a pool. These hazards include misjudging a dive and hitting one's head on the bottom, holding one's breath too long, becoming exhausted, and experiencing sudden cramps while too far from shore or other swimmers.
The history of swimming dates back thousands of years. One of the earliest representations of swimming is an ancient Egyptian wall relief that shows soldiers of Pharaoh Ramses II.
Swimming was very important in ancient Greece and Rome, especially as a form of training for warriors. In Japan, competitions were held as early as the 1st century BC....
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