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TIL The woman who coded for the first moon landing: Margaret Hamilton

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neZDW TIL that Uzbekistan and Liechtenstein are the only double-landlocked countries in the world. In order to get to the ocean from these countries you have to cross 2 national borders.
J9MB TIL whale songs sound just like bird songs when sped up
rRwAo TIL that the plagues of the Middle Ages have made around 10% of Europeans resistant to HIV. These individuals carry a genetic mutation (known as CCR5-Ä32) that prevents the virus from entering the cells of the immune system. The plagues of the Middle Ages played a part in creating these mutations.
p8woe TIL venomous and poisonous are different. If you bite it and die, it is poisonous. If it bites you and you die, it is venomous.
glZ4 TIL that is 2009 two men randomly decided to attack two men dressed in drag. It turned out the two drag queens were cage fighters in fancy dress.