› added 9 years ago

277

TIL: Taking pi to 39 digits allows us to measure the circumference of the observable universe to within the width of a single hydrogen atom.

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Wk4LA TIL late medieval and early modern European cartographers believed that compasses consistently pointed North because there was a massive, perfectly circular island made of naturally-magnetic black rock at the North Pole.
nWaLY TIL JFK ordered 1200 of his favorite cuban cigars the night before he signed the cuban trade embargo
jNrAR TIL that early in his imprisonment, Ted Kaczynski, the Unabomber, befriended Oklahoma City bomber Timothy McVeigh and Ramzi Yousef, a perpetrator of the 1993 World Trade Center bombing. The trio discussed religion and politics and formed a friendship that lasted until McVeigh's execution in 2001.
78BZb TIL John F. Kennedy, Lee Harvey Oswald, Jack Ruby, and Abraham Zapruder all died or were declared dead at the same hospital: Parkland Memorial Hospital in Dallas.
64aW TIL an accountant from Canada created a full-length role-playing game using an Excel workbook.