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Cave drawings were made to preserve knowledge
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Paper was introduced in China
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The first printing press was invented by Gutenberg
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Horn-books were used in public education
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Magic Lanterns were invented. With these lanterns you could display images on a glass frame onto a wall
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The first typewriter was introduced in schools
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Chalk and blackboards were replaced by pencils and paper
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The first ballpoint pens were introduced in schools
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The first handheld calculators were introduced
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The first personal computers were introduced in shcools
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The first SMART boards replaced the old chalk/whiteboards in schools