Throughout the 16th, 17th, and 18th centuries, the use of public baths declined gradually in the west, and private spaces were favored, thus laying the foundations for the bathroom, as it was to become, in the 20th century. However, increased urbanization led to the creation of more baths and wash houses in Britain.
A bathroom is a room in the home or hotel for personal hygiene activities, generally containing a toilet, a sink (basin) and either a bathtub, a shower, or both. In some countries, the toilet is usually included in the bathroom, whereas other cultures consider this insanitary or impractical, and give that fixture a room of its own. The toilet may even be outside of the home in the case of pit latrines. It may also be a question of available space in the house whether the toilet is included in the bathroom or not.
by: Memes Cagatay