Micheline Bernardini was a nude dancer at the Casino de Paris before being chosen by Louis Reard to model the first modern-day bikini on July 5, 1946 at Piscine Molitor in Paris. A bikini or two-piece is a type of women's Swimsuit, characterized by two separate parts &mdash one covering the Breasts (optionally in the case of A bikini or two-piece is a type of women's Swimsuit, characterized by two separate parts &mdash one covering the Breasts (optionally in the case of Events 1295 - Scotland and France form an alliance the beginnings of the Auld Alliance, against England. Year 1946 ( MCMXLVI) was a Common year starting on Tuesday (link will display full 1946 calendar of the Gregorian calendar.