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TIL that when the Washington monument was built the capstone was made out aluminum because it was considered a precious metal at the time.

Read more evolutiondc.museum.gwu.edu

via reddit.com

p8vXp TIL that 10% of drinkers consume over 50% of the alcohol.
Nw7N TIL that the reason all videos are subtitled on Netflix is because the National Association for the Deaf filed a class-action lawsuit against them in 2010.
DQMoV TIL about James Harrison, the "Man with the Golden Arm," who donated blood over 1,100 times and helped save 2.5 million babies. His rare antibody was used to create Anti-D, a treatment that prevents a deadly newborn disease. After receiving a lifesaving transfusion at 14, he spent six decades giving
MeVN8 TIL the Japanese word "arigata-meiwaku". It is the feeling you have when someone does you a favor you didn't want them to do, and which might have caused you trouble, but you have to act grateful anyway.
VBEW4 TIL about the Surf Nazi subculture. Although surf boards with swastikas on them had been sold since the 30s, the movement did not gain much notoriety until the late 50s through the 80s. Many Surf Nazis believed in localism - an ideology promoting hostility towards outsiders/non-white surfers.