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Acity is ahuman settlement of a substantial size. The term "city" has different meanings around the world and in some places the settlement can be very small. Even where the term is limited to larger settlements, there is no universally agreed definition of the lower boundary for their size. In a narrower sense, a city can be defined as a permanent anddensely populated place with administratively defined boundaries whose members work primarily on non-agricultural tasks. Cities generally have extensive systems forhousing,transportation,sanitation,utilities,land use,production of goods, andcommunication. Their density facilitates interaction between people,government organizations, andbusinesses, sometimes benefiting different parties in the process, such as improving the efficiency of goods and service distribution.
Historically, city dwellers have been a small proportion of humanity overall, but following two centuries of unprecedented and rapidurbanization, more than half of theworld population now lives in cities, which has had profound consequences forglobal sustainability. Present-day cities usually form the core of largermetropolitan areas andurban areas—creating numerouscommuters traveling towardcity centres for employment, entertainment, and education. However, in a world of intensifyingglobalization, all cities are to varying degrees also connected globally beyond these regions. This increased influence means that cities also have significant influences onglobal issues, such assustainable development,climate change, andglobal health. Because of these major influences on global issues, theinternational community has prioritized investment insustainable cities throughSustainable Development Goal 11. Due to the efficiency of transportation and the smallerland consumption,dense cities hold the potential to have a smallerecological footprint per inhabitant than more sparsely populated areas. Therefore,compact cities are often referred to as a crucial element in fighting climate change. However, this concentration can also have some significant harmful effects, such as formingurban heat islands, concentratingpollution, and stressing water supplies and other resources. (Full article...)
Malacca City (Malay:Bandaraya Melaka orKota Melaka) is thecapital city of theMalaysian state ofMalacca. It isthe oldest Malaysian city on theStraits of Malacca, having become a successfulentrepôt in the era of theMalacca Sultanate. The present-day city was founded byParameswara, a Sumatran prince who escaped to theMalay Peninsula whenSrivijaya fell to theMajapahit. Following the establishment of the Malacca Sultanate, the city drew the attention of traders from the Middle East, South Asia, and East Asia, as well as the Portuguese, who intended to dominate the trade route in Asia. After Malacca was conquered byPortugal, the city became an area of conflict when the sultanates ofAceh andJohor attempted to take control from the Portuguese.
Following a number of wars between these territories, Aceh declined in influence while Johor survived and expanded its influence over territory previously lost to Aceh in Sumatra whenJohor co-operated with the Dutch to take Malacca from the Portuguese who arrived to establish dominance overJava andMaluku Islands. However, due to royal internal strife between the Malay and Bugis, the Johor-Riau Empire was divided into the sultanates of Johor andRiau-Lingga. This separation became permanent when the British arrived to establish their presence in the Malay Peninsula. The Dutch, who already felt threatened in the presence of the British, began conquering the Riau-Lingga Sultanate along with the rest of Sumatra, while Johor came under British influence following the signing of theAnglo-Dutch Treaty of 1824. (Full article...)
Ann Arbor is a city inWashtenaw County, Michigan, United States, of which it is thecounty seat. It had a population of 123,851 in 2020, making it the fifth most populous in Michigan.
The city is home to theUniversity of Michigan, theoldest university in the state. Its economy is primarily focused onhigh technology, with numerousstartup companies drawn to the area due to the university's robustresearch and development activities. (Full article...)

Ametropolis is a largecity orconurbation which is a significant economic, political, and cultural area for a country or region, and an important hub for regional or international connections, commerce, and communications.
A big city belonging to a largerurban agglomeration, but which is not the core of that agglomeration, is not generally considered a metropolis but a part of it. The plural of the word ismetropolises, although the Latin plural ismetropoles, from the Greekmetropoleis (μητρoπόλεις). (Full article...)
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