Long before Harry Potter turned young adult literature into a publishing phenomenon, there was ‘Sweet Valley High.’

THE '90S
An anonymous note left on Richard Simmons’s car window changed the soon-to-be-superstar’s life forever.
The light-up sneakers were coveted by ’90s kids, but some adults considered them a public health hazard.
The animated rapping cat helped propel “Opposite’s Attract” to No. 1 on the Billboard charts in 1990—and he still occasionally pops up in some surprising places.
The Doodle Bear inspired many young Picassos in the 1990s.
Featuring rappers Chris “Mac Daddy” Kelly and Chris “Daddy Mac” Smith, Kris Kross rose to international fame with their infectious 1992 debut single, “Jump.” The duo rocked mega-baggy jeans, baseball caps, and oversized sports jerseys—all worn backward.
These commercials for '90s toys and games are quite the time machine.
You may need to consider a second mortgage for some of these prized Pokémon cards—unless you already have one in a drawer somewhere.
The full picture of the classic ‘90s business. Lights, camera, sequins!
From “Shaq Fu” to “Home Improvement: Power Tool Pursuit!,” these weird licensed video games prove that just because something is popular doesn’t necessarily mean it’ll make for good gameplay.
How Living Colour fought their way to the top of the charts—and is still going strong.
The hyper-violent arcade smash of 1992 was too bloody even for Congress.
Millennial women across the United States will remember rushing to their mailboxes after school to grab the hottest catalog of the ‘90s: dELiA*s.
The 1990 script features Elaine buying a gun and making JFK assassination jokes.
From Mariah to Britney, this video covers a decade's worth of chart-topping hits.
Did 'Friends' actually take place in a psych ward? Was it just one long promotion for Starbucks? Here are all the wildest 'Friends' fan theories.
These old commercials from the 1980s and '90s will have you "Sweatin' to the Oldies" with Richard Simmons and hanging out with Doublemint Twins.
You don't have to be a retro video game fan to find this classic PlayStation restoration oddly satisfying.
Ernie Hudson failed to convince producers of 'The Real Ghostbusters' that he could sound like Ernie Hudson.