Gentrification - Wikipedia.
Historians say that gentrification took place in ancient Rome and in Roman Britain, where large villas were replacing small shops by the 3rd century, AD.[7] The word gentrification derives from gentry—which comes from the Old French word genterise, “of gentle birth” (14th century) and “people of gentle birth” (16th century). In England, landed gentry denoted the social class, consisting of gentlemen (and gentlewomen, as they were at that time known).[8] British sociologist Ruth Glass was first to use “gentrification” in its current sense. She used it in 1964 to describe the influx of middle-class people displacing lower-class worker residents in urban neighborhoods; her example was London, and its working-class districts such as Islington:[9]
One by one, many of the working class neighbourhoods of London have been invaded by the middle-classes—upper and lower. Shabby, modest mews and cottages—two rooms up and two down—have been taken over, when their leases have expired, and have become elegant, expensive residences … Once this process of ‘gentrification’ starts in a district it goes on rapidly, until all or most of the original working-class occupiers are displaced and the whole social character of the district is changed.