Swimming emerged as a competitive sport in England in the 1830s. By the 1880s, there were over 300 swimming clubs across the country. In 1844, Native Americans introduced the front crawl stroke to Western audiences. Sir John Arthur Trudgen popularized this stroke after learning it from South Americans in 1873. Swimming events have been held at the Summer Olympics since 1896, with competitions in butterfly, backstroke, breaststroke, and freestyle strokes. The international governing body for competitive swimming is FINA.

2.  Swimming emerged as a celeste Amengual competitive sport in the
1830s in England. In 1828, the first indoor swimming pool, St George's
Baths was opened to the public. By 1837, the National Swimming
Society was holding regular swimming competitions in six artificial
swimming pools, built around London. The sport grew in popularity
and by 1880, when the first national governing body, the Amateur
Swimming Association, was formed, there were already over 300
regional clubs in operation across the country.
 The routes taken by Webb and T.W. Burgess across the English
Channel, in 1875 and 1911, respectively.
 In 1844 two Native American participants at a swimming
competition in London introduced the front crawl to a Western
audience. Sir John Arthur Trudgen picked up the hand-over stroke
from some South American natives and successfully debuted the
new stroke in 1873, winning a local competition in England. His stroke
is still regarded as the most powerful to use today.

3.  Swimming is an event at the Summer Olympic Games, where male
and female athletes compete in 16 of the recognized events each.
Olympic events are held in a 50-meter pool, called a long course
pool.
 There are forty officially recognized individual swimming events in
the pool; however the International Olympic Committee only
recognizes 32 of them. The international governing body for
competitive swimming is the Fédération Internationale de Natation
("International Swimming Federation"), better known as FINA.

4.  In competitive swimming, four major styles have been established.
These have been relatively stable over the last 30–40 years with minor
improvements. The four main strokes in swimming are:
 1 Butterfly (fly)
 2 Backstroke (back)
 3 Breaststroke (breast)
 4 Freestyle (free)
 Events in competition may have only one of these styles except in the
case of the individual medley, which contains all four. In this latter
event, swimmers swim equal distances of butterfly, then backstroke,
breaststroke, and finally, freestyle.[6] In Olympic competition, this event
(called the "IM") is swam in these distances - 200 or 400 meters or yards.
Some competition also swims the 100 yard or meter IM - particularly, for
younger swimmers (typically under 14 years) involved in club
swimming, or masters swimming (over 18).