Walls

Who even invented walls, and when they did why didn't they make the corners round, was it used as a torture device on the toes of the hated? https://media.wired.com/photos/590a55319f8d2e342d8e7781/master/pass/JK4783-001.jpg that is me everytime i stub a toe, WHY ANCIENT PEOPLE WHY?!?!?!