1920

A national advertising campaign included billboards in San Francisco and Los Angeles. Cutouts and decals of the red Diving Girl appeared on windshields of automobiles across the country. Sales during the decade spread throughout Europe, the Americas and Asia. The red Diving Girl icon had become an international symbol. The Jantzen Swimming Association sponsored swimming education and clean water programs across the country. Endorsements by celebrities began with 1924 Olympic Games champions Johnny Weismuller and Duke Kahanamoku of Hawaii. Fashion became increasingly important. “Color Harmony,” a range of colors and color combinations, was introduced to suit the coloration of every swimmer.