Question

Why did settled habitations develop

Answer 1

This article is about the places of human settlement. For the process of human settlement, see human migration. For the USGS definition of populated place, see Unincorporated area § USGS definition of populated place.For other uses, see Settlement.
The small town of Flora, Oregon in the United States is unincorporated, but is considered a populated place
Taos Pueblo, an ancient pueblo belonging to a Taos speaking Native American tribe of Pueblo people. It is approximately 1000 years old and lies about 1 mile (1.6 km) north of the modern city of Taos, New Mexico.In geography, statistics and archaeology, a settlement, locality or populated place is a community in which people live. A settlement can range in size from a small number of dwellings grouped together to the largest of cities with surrounding urbanized areas. Settlements may include hamlets, villages, towns and cities. A settlement may have known historical properties such as the date or era in which it was first settled, or first settled by a particular people.
In the field of geospatial predictive modeling, settlements are "a city, town, village ghost or other agglomeration of buildings where people live and work."[1]
A settlement conventionally includes its constructed facilities such as roads, enclosures, field systems, boundary banks and ditches, ponds, parks and woods, wind and water mills, manor houses, moats and churches.[2]
The oldest remains that have been found of constructed dwellings are remains of huts that were made of mud and branches around 17,000 BC at the Ohalo site (now underwater) near the edge of the Sea of Galilee. The Natufians built houses, also in the Levant, around 10,000 BC. Remains of settlements such as villages become much more common after the invention of agriculture.
Contents  [hide] 1 In landscape history2 In Statistics2.1 Australia2.2 Bulgaria2.3 Canada2.4 Croatia2.5 India2.6 Ireland2.7 Russia2.8 Sweden2.9 United Kingdom2.10 United States3 Geospatial modeling4 Abandoned populated places5 See also6 ReferencesIn landscape history[edit]
Some settlement sites may go out of use. This location in Estonia was used for human settlement in 2nd half of first millennium and it is considered an archaeological record, that may provide information on how people lived back then.Landscape history studies the form (morphology) of settlements – for example whether they are dispersed or nucleated. Urban morphology can thus be considered a special type of cultural-historical landscape studies. Settlements can be ordered by size, centrality or other factors to define a settlement hierarchy.
In Statistics[edit]Australia[edit]Geoscience Australia defines a populated place as "a named settlement with a population of 200 or more persons."[3]
The Committee for Geographical Names in Australasia used the term localities for rural areas, while the Australian Bureau of Statistics uses the term "urban centres/localities" for urban areas.[citation needed]
Bulgaria[edit]The Bulgarian Government publishes a National Register of Populated places (NRPP).
Canada[edit]The Canadian government uses the term "populated place" in the Atlas of Canada, but does not define it.[4] Statistics Canada uses the term localities for historical named locations.
Croatia[edit]The Croatian Bureau of Statistics records population in units called settlements (naselja).
India[edit]The Census Commission of India has a special definition of census towns.
Ireland[edit]The Central Statistics Office of the Republic of Ireland has a special definition of census towns.
Russia[edit]There are various types of inhabited localities in Russia.
Sweden[edit]Statistics Sweden uses the term localities (tätort) for various densely populated places. The common English-language translation is urban areas.
United Kingdom[edit]The UK Department for Communities and Local Government uses the term "urban settlement" to denote an urban area when analysing census information.[5] The Registrar General for Scotland defines settlements as groups of one or more contiguous localities, which are determined according to population density and postcode areas. The Scottish settlements are used as one of several factors defining urban areas.[6]
United States[edit]The United States Geological Survey (USGS) has a Geographic Names Information System that defines three classes of human settlement:
Populated place − place or area with clustered or scattered buildings and a permanent human population (city, settlement, town, village). A populated place is usually not incorporated and by definition has no legal boundaries. However, a populated place may have a corresponding "civil" record, the legal boundaries of which may or may not coincide with the perceived populated place.

Answer 2

The settled habitations mean organised living habitations formed by the humans.It can be single house or can be a highly populated city.

Humans need all kind of modern facilities for their efficient lifestyle. That's why we develop different modern facilities around our permanent living habitations.

This is the main reason behind the modern development of the proper settled human habitations.