Before revision: Middle ages to 19th century Sir Francis Bacon During the period of the Roman empire and late antiquity authors produced practical works such as Vitruvius' De Architectura (1st century BC) and Agricola's De Re Metallica (1556).
After revision: Middle ages to 19th century Sir Francis Bacon During the period of the Roman empire and late antiquity authors produced practical works such as Vitruvius' (1st century BC) and Agricola's De Re Metallica (1556).