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TIL one 5th of all mammal species are bats, and their ancestors appeared at the time of the dinosaurs

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oBreY TIL Starbucks uses round tables because research shows they are more welcoming than those with square edges and people look less alone while seated at a round table.
ANoka TIL that in ‘98 J.J. Abrams and the director of Cloverfield created a TV show about a young woman going to college called Felicity. It lasted four seasons and ends with a five-episode long time travel arc.
9ZO6 TIL that in medical dramas, about 66% of patients who are administered CPR survive long enough to be discharged from the hospital. In reality, depending on the circumstances CPR has a success rate between 2% and 18%.
oRAJW TIL that ancient numeral systems like Egyptian hieratic, Greek, Hebrew, Roman, Chinese, and early Indian Brahmi were all non-positional decimal systems, requiring large numbers of symbols. The world’s earliest positional decimal system was the Chinese rod calculus.
ORxg TIL Between 2005 and 2009, Americans’ retirement savings had shrunk by about $2.5 trillion. More than 8.8 million jobs were lost, and roughly 3 million homes had gone into foreclosure.