Masonry is among the oldest building crafts in the world. The development of Egyptian pyramids, Roman aqueducts, and medieval cathedrals are all examples of masonry. Early buildings applied the load of the masonry alone to stabilize the framework towards lateral actions. Subscribe to The us's biggest dictionary and get 1000's http://www.usnetads.com/view/item-133061903-West-Hills-Masonry.html