A pub (short for public house) is an establishment licensed to serve alcoholic drinks for consumption on the premises. The term public house first appeared in the late 17th century, and was used to differentiate private houses from those which were, quite literally, open to the public as 'alehouses', 'taverns' and 'inns'. By Georgian times it had become common parlance, although taverns, as a distinct establishment, had largely ceased to exist by the beginning of the 19th century. Today, pubs have no strict definition, but CAMRA states a pub has four characteristics: