The upward expansion of houses changed everything. Rooms began to proliferate as wealthy householders discovered the satisfactions of having space to themselves. The first step, generally, was to build a grand new room upstairs called the great chamber, where the lord and his family did all the things they had done in the hall before—eat, sleep, loll, and play—but without so many other people about, returning to the great hall below only for banquets and other special occasions. Servants stopped being part of the family and became, well, servants.
