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TIL That Landmines laid down during the Falkland’s war Have led to a thriving penguin population

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VMZdZ TIL that North Korea has its own football league. It was founded in 1960 and is apart of the Asian Football Confederation. Due to North Korea's secrecy not too much detail is known about the league.
yQGQp TIL Firefighters use wetting agents to make water more "wet". The chemicals added reduce the surface tension of plain water so it's easier to spread and soak into objects.
P1pkw TIL twins can have different dads by the occurrence called heteropaternal superfecundation
kJPA7 TIL that squirt guns predate the Civil War. Would be General Sherman once said “Why, you might as well attempt to put out the flames of a burning building with a squirt-gun.”
9w7Z7 TIL After the US Navy lost the USS Thresher in 1963, it instituted a quality assurance program called SUBSAFE for its submarines. As a result they went from losing 16 submarines to non-combat reasons in the 48 years before, to losing only the USS Scorpion (which wasn’t SUBSAFE certified) since 1963.