One of my favorite sections from Tina Fey’s 2009 bestseller Bossypants deals with body image:

I think the first real change in women’s body image came when JLo turned it butt-style. That was the first time that having a large-scale situation in the back was part of mainstream American beauty. Girls wanted butts now. Men were free to admit that they had always enjoyed them. And then, what felt like moments later, boom — Beyoncé brought the leg meat. A back porch and thick muscular legs were now widely admired. And from that day forward, women embraced their diversity and realized that all shapes and sizes are beautiful.

Ah ha ha. No. I’m totally messing with you. All Beyoncé and JLo have done is add to the laundry list of attributes women must have to qualify as beautiful. Now every girl is expected to have Caucasian blue eyes, full Spanish lips, a classic button nose, hairless Asian skin with a California tan, a Jamaican dance hall ass, long Swedish legs, small Japanese feet, the abs of a lesbian gym owner, the hips of a nine-year-old boy, the arms of Michelle Obama, and doll tits. The person closest to actually achieving this look is Kim Kardashian, who, as we know, was made by Russian scientists to sabotage our athletes.

I know that in this day and age, we women are taught that true beauty shines from within, that our happiness, health, and confidence are far more important than our physical attributes. But let’s face it — I have not come across a single woman in my life who was 100% satisfied with her body, all the time.

And how can we, when our society’s perception of an ideal body is every-changing as well?

To illustrate this point, The Greatist has put together a series of images that outline just how much the American standard for the “perfect body” has evolved over the past 100 years. Take a look!