Masonry allows the building of palaces, city walls, the Great Wall and Pyramids.
It is a prerequisite of construction, feudalism and mathematics.
Civilopedia entry[]
The aggregation of people into the first cities required permanent buildings. To fill the need for these structures, some of the new city dwellers became expert in the techniques of Masonry. This technology utilized rocks and mud bricks, cementing these materials into buildings and walls. With experience, their buildings grew larger and more elaborate, walls became more imposing, and the work became more permanent and pleasing to the eye. Years of experience led to more sophisticated techniques of Construction.