› added 11 years ago

82

TIL when Social Anxiety Disorder was added to the DSM-III in 1980, it was barely diagnosed, considered a rare disorder, until the late 90s when the drug ‘Paxil’ was approved for treatment. Now, 5.3 million Americans are diagnosed with it and is the 3rd most prevalent psychiatric disorder.

6EbKm TIL, the heliocentric theory and spherical earth concepts were proposed by Yajnavalkya, an indian astronomer in 8th-9th BCE. He also calculated the distance between earth and sun, and moon. He also calculated the duration of an year to a precision of 6 minutes longer than modern measurement.
7rOkP TIL one of Nirvana's most controversial performances was in 1993 at the Hollywood Rock Festival in São Paulo, after playing rough versions of their songs, they swapped instruments to play a set of badly rehearsed covers while they were booed by the audience and ended the show by demolishing the gear
GYOxG TIL that Louisa May Alcott, the author of "Little Women," never actually wanted to write the book. She thought of the genre as "moral pap for the young," and only decided to write this novel in order to help her father.
d8ZVZ TIL that a 'perfectly' measured dose of chloroform soaked in a rag would take around 5 minutes to knock a person out, rather than almost immediately.
oRBwr TIL the aboriginal tradition of firestick burning by their ancestors disrupted Australia's ancient ecosystem, ending the monsoon season, killing the megafauna, and turning the inland forests into desert.