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TIL that since 1949 all Treasurers of the United States, whose signature is on all dollar bills (along with the Treasury Secretary’s), have been women

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pmjO TIL that in 2009, within one month of each other, 16-year-olds in Canada and Taiwan discovered plastic-eating microorganisms that could potentially solve our plastic and styrofoam waste problems.
Wk8jL TIL that "double-acting" baking powder generates carbon dioxide to raise baking products at both room temperature and then, using different compounds, at oven temperature. This double-raising effect increases the reliability of the baking process.
e0kpJ TIL Liberia is to become the first nation in Africa to completely stop cutting down its trees in return for development aid. Norway will pay the impoverished West African country $150m (£91.4m) to stop deforestation by 2020.
wowP7 TIL PFC Ralph H Johnson A US Marine was awarded the Medal Of Honor for his heroic action on March 5, 1968. While shooting the enemy from a fire hole, An enemy grenade landed in between him and his comrade. He shouted a warning before hurling himself upon the grenade. He saved the life of One Marine.
OYXe TIL the U.S. is the only country that does not dip its flag to the host country at the Olympics opening ceremonies. When the U.S. flag-holder was asked to do so for King Edward VII at the 1908 London games, he supposedly responded, “This flag dips to no earthly king.”