Asbestos is a natural material that has been prized for centuries for its strength and resistance to flame and heat.
It was used during the Industrial Revolution and during the boom years during and after the World Wars in applications ranging from construction to manufacturing.
But asbestos has a dark side. Already in Roman times, observers noted the propensity among those who worked with the material to develop serious diseases and, in the mid-twentieth century, was directly related to several serious and even fatal diseases.
The correct answer is A: 1960.