› added 5 months ago

46

TIL Chicago’s first permanent non-indigenous resident was a trader named Jean Baptiste Point du Sable

Read more chicago.gov

via reddit.com

1aP9V TIL that individuals high in psychopathic traits show reduced susceptibility to contagious yawning; that is, yawning after seeing or hearing another person yawn.
b6yGa TIL that Tenji blocks, also known as tactile pavement, were invented in 1967 by Seiichi Miyake to help a friend who was losing their vision. This pavement is now used around the world.
5eDp TIL the first scientists to produce insulin for Type I diabetes treatment made their patent available without royalties, permitting the rapid, worldwide spread of insulin therapy.
d8vAr TIL polar bears have learned to hunt beluga whales, something that's only been seen in the last few decades.
ADk7l TIL American's spend $6.232 Billion on speeding tickets per year