City

A city is a large, densely populated human settlement concentrating homes, businesses, public services, and infrastructure. Its boundaries and legal status vary across societies.

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Urbanization: The growth in the share of a population living in urban settlements. Urbanization describes the demographic shift that expands cities and increases their influence.
Urban planning: The process of shaping land use, transport, buildings, and public spaces in urban areas. Planning guides how a city grows and how its spaces serve competing needs.
Neolithic Revolution: The gradual transition in many regions from foraging to farming and settled life. Agricultural surpluses enabled larger permanent communities that could develop into cities.
Central business district: A city's core area of concentrated commerce, offices, and other central functions. The district often anchors a city's employment, services, and transport connections.
Town: A human settlement generally larger than a village and smaller than a city, though definitions vary. The distinction from a city depends on population, functions, and local legal conventions.
Population density: The number of people living within a defined area. High density distinguishes many cities from smaller settlements and shapes daily interactions.
Public transportation: Passenger transport services shared by the public, typically operating on fixed routes or schedules. Shared transit moves large numbers of people through dense urban areas.
Uruk: An ancient Mesopotamian city that became a major urban center in the fourth millennium BCE. Uruk exemplifies early urban growth alongside monumental building and administration.
Urban economics: The study of how location and proximity shape economic activity in cities. It explains why firms and workers cluster and how urban costs and benefits arise.
Village: A small settlement, often organized around a local community and surrounded by rural land. Villages typically have less population and fewer specialized services than cities.