69QR8 TIL that Opera Contralto Ernestine Schumann-Heink toured the U.S. to raise money for American forces in World War I while her son was in the German Navy.
9wyym TIL that in the United States, 54% of adults have a literacy below a 6th-grade level, 20% are below 5th-grade level, and 21% are illiterate.
wL6P1 TIL Archduchess Charlotte of Austria spent years as a social worker under the name Charlotte de Bar for charities in NYC and Munich
VBWwk TIL Mount Saint Elias is both the second tallest mountain in the United States and the second tallest mountain in Canada.
p8lyb TIL Carlsberg Laboratory, owned by the Danish brewer, was where the pH scale was invented, and where the first stable commercial beer yeast was isolated (Saccharomyces pastorianus/Saccharomyces carlsbergensis), along with many other scientific innovations