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TIL the bedchamber sword of 18th century Indian ruler Tipu Sultan became the most expensive Indian or Islamic object ever sold at auction when it sold for $17.4 million last year. Its hilt is decorated with gold calligraphy and "the sword of the ruler" is inscribed in Persian on its blade.

yVYEM TIL about a group of proteins called E3 ubiquitin ligases. They recognize misfolded or damaged proteins in the body. The human genome contains over 600 genes responsible for encoding these proteins. The mutation of the E3 ubiquitin ligase called "parkin" causes familial Parkinson's Disease.
oBAZo TIL female kangaroos can be perpetually pregnant. While the young joey is nursing in her pouch, another embryo will put itself “on hold” until the new baby leaves the pouch, after which the inch-long newborn kangaroo will crawl up to and into the pouch.
GAYxg TIL the Battle of Gettysburg may have started because of shoes. General Heth sent General Pettigrew to Gettysburg because there were rumors of supplies of footwear, and many Confederate troops marched barefoot or with rags wrapped on their feet.
9LPD TIL Texas is #1 in toxic chemicals released into water, carcinogens released into air, carbon dioxide emissions, hazardous waste, #2 in overall birth rate, #50 in % with high school diploma, population insured, women receiving prenatal care in first trimester
GYa9G TIL why older people are more likely to develop cancer, MMA is an important factor in inducing cancer progression. The elderly's gastrointestinal dysfunction leads to vitamin B12 deficiency and insufficient vitamin B12 to react with MMA, leading to the accumulation of MMA.