While Twiggy and Jean Shrimpton are widely credited with being the it-girls of the 1960s, another star of the era feels she started the bold eyeliner trend.

The 1960s gave birth to the evergreen idea of supermodels in the modern sense. In the '90s, we had Naomi Campbell, Cindy Crawford, and Linda Evangelista — all of whom are still trend-setting today — ...