10. Prostitutes in Venice had to wear yellow in the 1420s
As an important trading port, medieval Venice provided a home for many prostitutes. Men who’d been at sea for months came to shore hoping to have a good time before their next voyage. In 1360, the Venetian government tried to control prostitution by confining brothels to the Castelletto area near the Rialto market. Still, the trade grew, and the government wanted to capitalize on increased tax revenue. Thus in the 1420s, in order to accommodate more red-light districts, they established further areas, but forced all prostitutes to wear the color yellow to avoid confusion.