Nine years ago today, television host Oprah Winfrey made internet history by reading aloud a troll post on her message board left by a person claiming to be a representative of a pedophile group with "over 9000 penises."

Two years ago on this day, a group of astrophysicists picked up a signal of gravitational wave emitted during the merge of two black holes nearly 1.3 billion light-years away from home, confirming Einstein's decades-old theory of general relativity and ushering in a new era of gravitational-wave astronomy.

Seven years ago today, this indie pop song by Foster the People was released as the band’s debut single, which subsequently became a school shooting meme thanks to the song's morbid lyrics written from the perspective of a homicidal teenager.

12 years ago today, Blizzard Entertainment inadvertently released a plague upon the World of Warcraft subscriber base by introducing the raid boss Hakkar the Soulflayer, a powerful raid boss who infected players with a contagious disease that quickly spread throughout the entire virtual world.

Four years ago today, an eight-year-old girl from Salt Lake City won the heart of millions on YouTube with her hilarious skeptical reaction to a surprise Disneyland trip.