On July 51946French designer Louis Réard unveils a daring two-piece swimsuit at the Piscine Molitora popular swimming pool in Paris. Parisian showgirl Micheline Bernardini modeled the new fashionwhich Réard dubbed “bikini,” inspired by a news-making U.S. atomic test that took place off the Bikini Atoll in the Pacific Ocean earlier that week.
European women first began wearing two-piece bathing suits that consisted of a halter top and shorts in the 1930sbut only a sliver of the midriff was revealed and the navel was vigilantly covered. In the United Statesthe modest two-piece made its appearance during World War IIwhen wartime rationing of fabric saw the removal of the skirt panel and other superfluous material. Meanwhilein Europefortified coastlines and Allied invasions curtailed beach life during the warand swimsuit developmentlike everything else non-militarycame to a standstill.
In 1946Western Europeans joyously greeted the first war-free summer in yearsand French designers came up with fashions to match the liberated mood of the people. Two French designersJacques Heim and Louis Réarddeveloped competing prototypes of the bikini. Heim called his the “atom” and advertised it as “the world’s smallest bathing suit.” Réard's swimsuitwhich was basically a bra top and two inverted triangles of cloth connected by stringwas in fact significantly smaller. Made out of a scant 30 inches of fabricRéard promoted his creation as “smaller than the world’s smallest bathing suit.” Réard called his creation the bikininamed after the Bikini Atoll.