When you think of iconic beauty products, what comes to mind? For me it's lipstick. It's no surprise that lipstick is such a beauty icon [1] considering it dates back 5,000 years. But it really became popular in the sixteenth century under Queen Elizabeth I, when it became a symbol of aristocracy.

Then, during WWII, movie stars made lipstick even more popular. Now 80 percent of women wear it [2]. Did you know that more than 700 million lipsticks are sold throughout the world each year? That means that 22 lipsticks are purchased every second!

But here's my question: Back in the early years when tubes of lipstick weren't readily available, what do you think women used to stain their lips?