And even then, they had already noticed that slaves who often came in contact with asbestos developed a "sickness of the lungs." Nonetheless, they were so fascinated with what they considered its magical properties that they turned a blind eye to its observed harmful effects.
It is believed that Charlemagne use asbestos tablecloths during the middle ages.
In the late 1800s, during the Industrial Revolution, the use of asbestos as insulation