› added 3 months ago

10

TIL Iran had pro-American riots in 1919

Read more penntoday.upenn.edu

via reddit.com

Bgyvr TIL that Wimbledon umpires learn a vast array of swear words in many different languages in order to flag ,and subsequently fine, any athlete to break the no swearing rule.
kJZde TIL about Ring Theory; a psychological model that essentially serves as an instruction guide for who you are allowed to trauma dump on if you are emotionally affected from knowing someone that has experienced trauma.
JYaD4 TIL in 1997 an experiment to build a castle, using only medieval tools began, and twenty one years later they're more than half way finished.
pYArN TIL the world’s largest ETF, SPY, worth over $500 billion, is tied to the lives of 11 random people born between 1990 and 1993. None of them knew they were involved, but the fund will dissolve 20 years after the last one passes away.
AkKd TIL that in 1989-1990 the Belgian Air Force successfully got two missile locks on a UFO, only to be outmaneuvered. The object accelerated from 240 km/h (150 mph) to 1100 km/h (683 mph) almost instantly, descending 900 m (half a mile) in less than 2 seconds, something that would kill a human pilot.