-4-5 double spaced pages on the impact of walls (both city walls and border wall

-4-5 double spaced pages on the impact of walls (both city walls and border walls) on European civilization to 1500. Required reading: Walls: A History of Civilization in Blood and Brick, pages 15-46, 63-80, 93-130, and 163-174. If you are using an electronic edition without page numbers, you can skip the introduction and any chapters devoted to China or set in the period after the fall of Constantinople.