For most of us, it's hard to fathom what it would even feel like to live 100 years. Not only would such a lifespan likely show us what seems like multiple lifetimes worth of changes, but that's especially true for those turning 100 now.
After all, if there's one thing that sets our lives apart from those of centuries past, it's that everything seems to happen a lot faster now. So you'd likely have an easier time keeping track of what's stayed the same since 1920 than of what's changed.
Nonetheless, one Pennsylvania woman seemed to be taking everything that's going on in stride as she celebrated one special birthday.