The Mongol Empire
, founded by Genghis Khan in 1206, grew to become the largest contiguous land empire in history, stretching from Eastern Europe to the Sea of japan

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Johannes Gutenberg
invented the movable-type printing press around 1440, sparking a global revolution in education, literacy, and the mass spread of information

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The French Revolution
began in 1789 with the storming of the Bastille prison in Paris, leading to the overthrow of the monarchy and the rise of radical social changes across europe

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shrimp keep their hearts in their heads. Their vital circulatory organ is located right inside the cephalothorax, just behind their face.

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Marie Curie
was the first person to win two Nobel Prizes (Physics in 1903 and Chemistry in 1911) and remains the only individual honored in two different scientific fields for her work on radioactivity

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The Treaty of Versailles
, signed in 1919, officially ended World War I and imposed strict economic penalties and territorial losses on Germany, which heavily influenced the build-up to World war the second

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The Fall of the Berlin Wall
on November 9, 1989, symbolized the collapse of the "Iron Curtain" and paved the way for the reunification of Germany and the eventual end of the Cold War

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Octopuses have three hearts and blue blood. Two hearts pump blood to the gills, while the third circulates it to the rest of the body. Their blood turns blue because it relies on copper instead of iron to carry oxygen.

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The American Civil War
was fought between the Northern states (the Union) and the Southern states (the Confederacy) from 1861 to 1865, primarily over the economic and moral issue of slavery

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Butterflies taste everything with their feet. They have taste sensors on their legs to quickly determine if a plant is safe to eat or lay eggs on just by landing on it.

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Polar bears look white, but their skin is actually jet black. Their fur is completely transparent and hollow, reflecting light to blend into the snow while their black skin absorbs heat from the sun.

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Rats laugh when they are tickled. While you can't hear it with the naked human ear, scientists using special microphones discovered that rats emit ultrasonic chirps that match the acoustic profile of human laughter.

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Flowers can be an instant mood lifter. Brain chemicals such as Oxytocin, dopamine, and serotonin are released when you have a positive reaction to flowers. These happy brain chemicals trigger feelings of bonding,excitement & genuine happiness.

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You grow so accustomed to your own body odour that you eventually don't realise that you have one. When you can start to smell a little bit of your odour then its gotten to the point where you need to seriously take a deep clean. Had to learn this the hard way.

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