The Most Important Events That Changed History Forever

Spanish Flu (1918)

The 1918 Spanish flu pandemic lasted until 1920 and infected 500 million people—roughly a third of the world's population at the time—in four different waves. The death toll is estimated somewhere between 17 and 100 million, making it one of the deadliest pandemics in human history. 

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The More You Know

  • Elephants comfort each other with chirps.
  • Portland was named by a coin flip. Had the coin landed the other way, the city would be known as Boston, Oregon.
  • The oceans contain 200,000 different kinds of viruses.
  • A typical cloud weighs around 1.1 million pounds.
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