TIL America has the highest teen pregnancy rates of any nation the developed world. Within America, Mississippi has the highest rates. Every single county in Mississippi has a teen birth rate higher than the national average.
TIL that caterpillars dissolve and “die” inside the chrysalis, so the resultant butterfly could be called a “new” organism. Some even think they evolved from two different ancestors.
TIL that Andrew Jackson was the only U.S. President to have had the national debt fully paid, but it only lasted for one year