Rebellion and prep. Originally borrowed from Scottish clans of the 16th century, the plaid print has had an electric and provocative past. Vivienne Westwood popularized anarchist-inspired plaid on the coattails of the punk revolution in the 1970s. The 1980s launched its era of prep, thanks to style icons like Princess Diana - but the 1990s saw plaid as the unofficial fashion symbol of the grunge movement. The one mainstay - everyone brings out their plaid as soon as the leaves start changing colors.

Coco Chanel stunned the world with the first “suit for women” in the 1920s, Yves Saint Laurent outraged by including pants in the 1960s – but the power suit was truly birthed in the 1900s during the suffragette movement, when women wore gender bending clothes while demanding their right to vote.