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TIL The sound of running water puts Beavers in the mood to build. If a speaker reproduces sound of running water, a beaver will build a dam over it. Even if it's on concrete with no visible water.

6EdeZ TIL In 1990 the USSR and PepsiCo made a deal to exchange Pepsi syrup for vodka and a small fleet of Soviet warships including 17 submarines, a frigate, a cruiser and a destroyer. Until PepsiCo sold the ships to Sweden a few days later for scrap, Pepsi was the 6th largest navy in the world
7rQ9r TIL that the "Magic Relationship Ratio," according to science, states that for every negative interaction during conflict, a stable and happy marriage has five (or more) positive interactions
9DNB TIL of Samuel Whittemore, the oldest known colonial combatant in the American Revolutionary War. At the age of 78, after killing two British soldiers, Samuel was shot in the face, bayoneted numerous times, and left for dead in a pool of blood. Samuel lived another 18 years.
rOxx TIL when Jazz legend Nina Simone was preparing for her 1st recital at age 12, her parents were moved from the front row to make room for whites. 12 year old Simone refused to sing until her parents got their seats back. They did.
N8Y1 TIL that pre-columbian population of the Americas is estimated to have been 50-100 million people. 90% of the indigenous population died from diseases imported by europeans, most of which got infected and died without direct contact - fuelling the legend of an empty continent ready to be seized