People Share Interesting Things In ‘Today I Learned’ Online Group

The subreddit Today I Learned is an online community where people share all the interesting and insightful new things they learned just now.

Also, you can check our previous TIL posts here.


today i learnedhowmuchbanana

TIL the chemical reaction in glow sticks was discovered by Dr. Edwin Chandross in 1962, but he had no idea the “chemiluminescent” objects were popular at music shows until a Vice interview in 2013. “Is that so?” he said. “Maybe my granddaughter will think I’m cool now.”



TIL after a chance encounter, Charles-Michel de l’Épée was taught to sign by the deaf. Believing the deaf should be able to receive the sacraments, he founded a school in 1760 to teach sign language. His public advocacy enabled deaf people to legally defend themselves in court for the first time


today i learnedoperator139

TIL a 2018 study by Yale psychologists found introverts who are prone to melancholy seem to be more astute at understanding how people behave in groups than their sociable peers. Introverts are more prone to assessing truths about humans’ “social nature” without formal training or tools



TIL that the jumping spider, Nefertiti, was launched to the ISS to observe if it could catch prey in microgravity. It succeeded in catching prey by learning to walk slowly, rather than leaping, as this species usually does. It survived reentry and readjusted to full gravity before its natural death


today i learnedMajorpain2006

TIL Tag brothers are a group of 10 men who had been playing the game of tag since 1990, chasing each other around the country, traveling by plane, car etc. As of 2018, the game is still ongoing



TIL A director made a ten hour movie that’s just about paint on a wall drying, lasting for ten hours and seven minutes. The film was created by Charlie Lyne in order to troll the British Board of Film Classification (B.B.F.C.) who were forced to sit through the whole thing


today i learnedWhileFalseRepeat

TIL of eagle hunters in Mongolia. Known as the Burkitshi, this nomadic tribe hunts with eagles (only female eagles as they are larger and believed to be fiercer). While eagles can live for decades, theirs are captured at the age of four and released after 10 years to live out their life in the wild.



TIL that Charles D. B. King holds the record for the most fraudulent election in history. In 1927 he was elected President of Liberia with 234,000 votes in a country that only had 15,000 registered voters at the time


today i learnedxeldesign

TIL I learned the first American soldier to land on the beach durning the invasion of Normandy was shot twice and not only survived, but lived to be 90 years old



TIL the big orange fuel tank attached to the space shuttles was originally white, but they stopped painting it to save 600lbs