Pink wasn't always a girl's color and blue a boy's color -- in fact, it was once the other way around.

The refinement of blue for boys and pink for girls didn't take full hold until the mid of the 20th century. Many of us already knows t...

The refinement of blue for boys and pink for girls didn't take full hold until the mid of the 20th century. Many of us already knows that President Franklin Delano Roosevelt wore dresses as a child. Kids would wear gender neutral, for the most part white clothing that was easy to bleach clean, and wouldn't get hair styles around the age of six or seven. It wasn't until retail stores began showcasing gender-specific colors that parents began to worry about making sure their children were wearing the "right" outfits. 

When mass advertising started, the messages were all mixed. The trade publication "Earnshaw's Infants' Department" included an article recommending, "the generally accepted rule is pink for the boys, and blue for the girls. The reason is that pink, being a more chose and stronger shading, is more suitable for the boy, while blue, which is more delicate and dainty, is prettier for the young girl."