During the reign of the Roman Emperor Tiberius Caesar, between 14-37 AD, a craftsman created flexible glass which was shatterproof, and would only produce slight dents when dropped, which could be easily repaired with a hammer.
The Emperor, fearing that it would devalue gold and silver, had the craftsman executed. To this day no one knows how the legendary material was made.
from Crazy Facts http://ift.tt/1oWBiLc
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