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TIL in the 1950s there used to be a bus route between London and Calcutta, India

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Wk9g8 TIL Warren Buffet, a billionaire worth ~$50 billion, was audited by the IRS in 1944 when he was 14 for making more than $500 during his paper route. He filed a tax return and was able to get a $45 return for bicycle maintenance and a broken watch.
logKB TIL 3D printing offers a completely new opportunity for the development of personalized medicines. Introducing 3D printers to pharmacies and hospitals would allow physicians, nurses, and pharmacists to form a dose and delivery system based on the patient’s body size, age, lifestyle, and sex.
oBYrr TIL that Lego has launched a “Braille Brick” concept. It’s designed help children who are blind and partially sighted learn braille. The Braille Kit is expected to launch in 2020, with 250 bricks covering the alphabet, numbers 0-9, and select maths symbols.
oB9KE TIL that Oxford University tradition is that all students wear a carnation as well as academic dress to their exams. The colour of the carnation is white for the first exam, red for the last and pink for each one in between.
D1naP TIL a stele (inscribed stone) was found in northern Israel that boasts of the author's victories over the "House of David". It likely dates back to 9th century BCE, making it the earliest known reference to King David.