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    ‘Lead’ pencils have never actually contained any traces of lead, but rather a mix of graphite and other materials.

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27th February


On this day in 1883, Oscar Hammerstein patented a machine that applied wrappers to cigars... Read more »

On this day in 1883, An improved hand-stamp was patented... Read more »

On this day in 1900, Felix Hoffman received the first patent for the drug we now know as Aspirin... Read more »


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