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TIL that classical music slows mice heart transplant rejection

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wLAnP TIL Before toilet paper, Ancient Romans used a sponge on the end of a long stick that was shared by everyone in the community. When not in use, the stick stayed in a bucket of heavily salted seawater in the communal bathroom.
Pw8n TIL that LEGO also manufactured “non-brick” wooden toys under BILOfix brand. Their wooden toy factory was burnt down twice: first in the 1940s and second in 1960 when the lightning struck it. After this, the team decided to focus on the production of plastic construction sets instead.
xZkB TIL that an 8-year old girl had the Grand Wizard of the KKK as a pen pal
X0GQ8 TIL about the iridium anomaly, an unusual abundance of iridium in the Earth's rock layers which are 66 million years old. This suggest that the extinction event which wiped out the dinosaurs was caused by a meteorite impact, as iridium is much more abundant in meteorites than it is on Earth.
GYKK7 TIL Joseph Philippe Lemercier Laroche was a Haitian engineer who lost his life on the Titanic.He was one of only 3 passengers of known African ancestry on the ill-fated voyage of RMS Titanic. He put his pregnant French wife and their two daughters onto a lifeboat;they survived but sadly he did not.