Invention of Modern Concrete
John Smeaton invents modern concrete (hydraulic cement). Introduces the dominant construction material of the modern age.
A word about the original artwork: It was created by TMS’s David Rasel, who drew stylistic inspiration from the etchings in Georgius Agricola’s De Re Metallica. David’s mix of anachronism, whimsy, and technical/historical artistic license adds a memorable stamp to the proceedings.