Young Blonde Girl Outside Undresses Her Red Bikini

History
Predecessors of the bikini date back to antiquity, in Çatalhöyük and the Greco-Roman world. Artwork dating back to the Diocletian period (286-305 AD) in Villa Romana del Casale, Sicily depicts women in garments resembling bikinis in mosaics on the floor. The images of ten women, dubbed the "Bikini Girls", exercising in clothing that would pass as bikinis today, are the most replicated mosaic among the 37 million colored tiles at the site. Archeological finds, especially in Pompeii, show the Roman goddess Venus wearing a bikini. A statue of Venus in a bikini was found in a cupboard in the southwest corner in Casa della Venere, others were found in the front hall. A statue of Venus was recovered from the tablinum of the house of Julia Felix, and another from an atrium at the garden at Via Dell'Abbondanza.
The groundwork for the modern bikini began to be laid in 1907, when Australian swimmer and performer Annette Kellerman was arrested on a Boston beach for wearing a form-fitting one-piece swimsuit, which became an accepted beach attire for women by 1910. In 1913, inspired by the introduction of women into Olympic swimming, designer Carl Jantzen made the first functional two-piece swimwear, a close-fitting one-piece with shorts on the bottom and short sleeves on top. By the 1930s, necklines plunged at the back, sleeves disappeared and sides were cut away. Hollywood endorsed the new glamour with films such as Neptune's Daughter in which Esther Williams wore provocatively named costumes such as "Double Entendre" and "Honey Child". With new materials like latex and nylon, by 1934 the swimsuit started hugging the body and had shoulder straps to lower for tanning.
By the early 1940s two-piece swimsuits were frequent on American beaches. Hollywood stars like Ava Gardner, Rita Hayworth and Lana Turner tried similar swimwear or beachwear. Pin ups of Hayworth and Esther Williams in the costume were widely distributed.