July 5 (UPI) -- International Bikini Day, celebrated annually on July 5, marks the anniversary of the day French designer Louis Reard debuted his two-piece bathing suit in 1946.
The holiday celebrates the anniversary of Reard's bikini first being sold to the public on July 5, 1946. The bathing suit takes its name from Bikini Atoll, the coral reef in the Marshall Islands where the United States began testing nuclear weapons four days before the bathing suit's debut.