1. Our ancestors didn't perceive the color blue like we do today.
2. Blue was the first color to be synthetically produced.
3. If a woman wore light blue during the Renaissance, it meant she was young and marriageable.
4. Before 1856, the color purple came from snail mucus.
Cleopatra needed 20,000 snails soaked for ten days to obtain one ounce of purple dye for her royal clothing. Purple clothing during the Renaissance and Medieval era was very difficult to find since the snail used to make the royal color was almost extinct.