BgK1k TIL that Martin Luther King Jr's great great grandfather was Irish.
rNB4o TIL that during the Great Depression, there was a fleet of "book women" who delivered books to rural Appalachian communities. They rode 100 to 120 miles a week, on their own horses or mules, no matter the weather or terrain.
P1WEV TIL 7-UP was launched 2 weeks before the 1929 stock market crash and contained lithium until 1948.
8eKE4 TIL that the daily amount of hair collected from Hindu devotees of the deity Venkateshwara in Venkateswara Temple is over a ton. The hair is collected and sold, creating a substantial profit for the temple of around $2 million USD per month
NXndJ TIL about Nigersaurus, a dinosaur that had more than 500 teeth which were replaced every 14 days.
l7elV TIL that the average IQ is steadily increasing each generation. IQ tests are getting harder and harder to keep the average at 100, and today's kids taking tests from previous decades have an average score of over 100.
epWl5 TIL that like the TV show, the city of Dawson Creek in 2015 had a "steamy affair between a teacher and a student", but unlike the TV version it "was taken very seriously, and the former music teacher at the centre of it was charged with several crimes"
VBVY4 TIL about Boundary Extension, which is " a widely accepted psychological phenomenon in which observers will recall an image as containing visual information beyond the boundaries of the originally studied image".
X0PMj TIL:Sir David Attenborough's career started in 1952 and he was initially discouraged from appearing on camera.His inspiring work has led scientists to name atleast 20 species after him,including a bird (Polioptila attenboroughi),a frog (Pristimantis attenboroughi)and an Indonesian flightless weevil.
OG9e7 TIL The USA's National Broadcasting Company (NBC) helped fund a tunnel beneath the Berlin Wall in 1962
69oGm TIL that James Cameron offered Matt Damon 10% of "Avatar," which would've earned the actor over $250 million.
woAw6 TIL of Vanessa Lawrence, a woman who was on the 91st floor of the World Trade Center (North Tower) as Flight 11 crashed into it, and survived with only a cut on her foot