› added 8 years ago

147

TIL microneedle patches are being developed to replace hypodermic needles.

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boG4 TIL in 1959, a white author underwent skin treatments to appear African-American, hitchhiked around the Pre-Civil Rights South to experience hatred and racism firsthand, then wrote a bestselling book about it.
LQvVp TIL the first AI generated image was created in the 1970s
DErg TIL the city of Derinkuyu could accommodate 20,000 people and included a school, chapel, stores and more. All that was underground with an amazing system so that the oxygen and water would always be available.
d8vkd TIL the Kuwae volcanic eruption affected the entire world. During the final siege of Constantinople the city's gardens failed and it was racked by a thunderstorm. There were crop failures in Sweden, the Chinese recorded countless died of cold and famine, and Mexican codices record frosts in fall.
4XQwN TIL that Dr. Seuss was afraid of public speaking because he was traumatized by President Teddy Roosevelt as a Boy Scout. In his later years, he lived in isolation at the top of a mountain.