2. Nothing strange about this picture right? 

In this picture, taken in 1900, you can see fifteen women posing with their arms crossed. They’re all looking straight into the camera. They are standing in front of a clothing factory just outside Belfast, Ireland, and are wearing their work clothes. At first glance nothing seems wrong with the picture, but when you look more closely, you can see something remarkable.

We will give you a hint: pay attention to the woman on the bottom row; all the way to the right. Do you still don’t see it? Check the next page!