en.wikipedia.org

Salad Fingers ( en.wikipedia.org )

Citizendium (Wikipedia alternative/competitor) ( en.wikipedia.org )

Mariko Aoki phenomenon (the sudden urge to defecate after entering a bookstore) ( en.wikipedia.org )

Tabanidae (family including deer flies, horse flies and other vicious beasts) ( en.wikipedia.org )

Damnatio memoriae ( en.wikipedia.org )

Götz von Berlichingen (AKA Götz of the Iron Hand, the Medieval Mercenary Knight with an astonishingly sophisticated iron prosthetic hand) ( en.wikipedia.org )

Gottfried "Götz" von Berlichingen (pronounced [ˈgɔtfʁiːd fɔn ˈbɛʁlɪçɪŋən], [ˈgœts]; 15 November 1480 – 23 July 1562), also known as Götz of the Iron Hand, was a German (Franconian) Imperial Knight (Reichsritter), mercenary and poet. He was born around 1480 into the noble family of Berlichingen in modern-day...

LaserDisc ( en.wikipedia.org )

Relics of Mary Magdalene ( en.wikipedia.org )

Sleep and His Half-Brother Death ( en.wikipedia.org )

1997 Pearl High School shooting ( en.wikipedia.org )

TIL about the TRAPPIST-1 Star System ( en.wikipedia.org )

(it's not a solar system because Sol is our star, specifically; we're the only Solar system)...

TIL about Roko's Basilisk, a thought experiment considered by some to be an "information hazard" - a concept or idea that can cause you harm by you simply knowing/understanding it ( en.wikipedia.org )

Roko's basilisk is a thought experiment which states that an otherwise benevolent artificial superintelligence (AI) in the future would be incentivized to create a virtual reality simulation to torture anyone who knew of its potential existence but did not directly contribute to its advancement or development, in order to...