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When was braille made?
Braille was made by Louis Braill in 1824 at the age of fifteen after an accident in his fathers shop.
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Where was braille made?
Braille was devised in 1821 by Louis Braille, a Frenchman.
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What is marble made and slate made from?
Marble is made from metamorphosing carbonate rocks such as limestone, so it's composition is mostly calcium carbonate (like Tums, it fizzes when acid is poured on it). Slate is made from...
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How was slate made?
Slate starts as clay. Thhrough erosion and nature, the clay can change to shale or slate. Shale happens when layers upon layers are of clay and sediment are piled together and held in place with...
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How is slate made?
Slate is made when shale is put under pressure, heat or both (Metamorphic)