This year has been a big one for pop Culture anniversaries. Friends turned 10 making Ross's son, Ben, almost 20 **w. Some of our favorite albums from the '90s turned 15 this year - including Britney Spears's . . . Baby One More Time and Christina Aguilera's divalicious debut - and many killer teen ****** did too. While exciting, it's **t all sweet **stalgic feelings - it forces us to look at just how long it's been since those good old days. Keep reading to see 25 mind-blowing pop Culture Facts That Will Make you Feel ancient, from the demise of YM magazine and other 2000s trends to exactly how long ago Mary-Kate and Ashley Olsen made a splash in matching outfits.