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Jon van Eyck invented oil paint because it lasted longer than tempera paints.
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Johannes Spinctus invented the first piano but it didn't have that many keys as it does today .
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He printing press was invented by Gutenberg. So then people were able to read more and have books.
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The wallpaper we decorated with hand painted designs,stencils,and wood block prints. Only wealthy people could afford it.
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The Pocket Watch was invented by a locksmith and clock maker they was German named Peter Henlein.
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Three eyeglass makers were have credit to this invention. They were invented to see things really small and far away.
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The invention was influenced by the discovery of a large piece of graphite.
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Leonardo da Vinci invented a vehicle that moves underwater and is used for war.
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The flush toilet was first installed in a queens house,but some peek refused to use it so they just stood to using pots.
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When China founded gunpowder people started to find its uses and so they started to make anything that contains gunpowder.