Cuanza Norte Province
Municipalities
Table:
Município
Capital[11][12]
Area (km2)[11][12]
Pop. (2006 est)[11][12]

Ambaca
Camabatela
3,080
123,244

Banga
Banga
1,260
23,284

Bolongongo
Bolongongo
1,061
31,288

Bula-Atumba
Bula
3,604
56,718

Cambambe
Dondo
5,212
91,984

Cazengo
N'Dalatando
1,793
109,256

Dembos
Quibaxe
2,444
58,941

Golungo Alto
Golungo Alto
1,989
69,918

Gonguembo
Gonguembo
1,400
37,405

Lucala
Lucala
1,718
41,792

Pango-Aluquém
Pango
2,754
45,680

Quiculungo
Quiculungo
475
30,152

Samba Cajú
Samba Cajú
2,012
95,638

Leveraging the tabular data as well as the relevant paragraphs provided at the end.

Solve the question: When was the fort built near the river of this town of the highest population ? Return your answer as JSON: {"answer": "YOUR ANSWER"}. Avoid adding external knowledge.

A capital or capital city is the municipality exercising primary status in a country , state , province , or other administrative region , usually as its seat of government . A capital is typically a city that physically encompasses the government 's offices and meeting places ; the status as capital is often designated by its law or constitution . In some jurisdictions , including several countries , the different branches of government are located in different settlements . In some cases , a distinction is made between the official ( constitutional ) capital and the seat of government , which is in another place . Capital cities that also serve as the prime economic , population , cultural , or intellectual centres of a nation or an empire are sometimes referred to as primate cities . Examples are Athens , Bangkok , Brussels , Copenhagen , Cairo , London , Mexico City , Paris , Lima , Seoul and Tokyo . News media often use the name of a capital city as an alternative name for the country of which it is the capital or of the government that is seated there , as a form of metonymy . For example , relations between Washington and London refer to relations between the United States and the United Kingdom .
Area is the quantity that expresses the extent of a two-dimensional figure or shape or planar lamina , in the plane . Surface area is its analog on the two-dimensional surface of a three-dimensional object . Area can be understood as the amount of material with a given thickness that would be necessary to fashion a model of the shape , or the amount of paint necessary to cover the surface with a single coat . It is the two-dimensional analog of the length of a curve ( a one-dimensional concept ) or the volume of a solid ( a three-dimensional concept ) . The area of a shape can be measured by comparing the shape to squares of a fixed size . In the International System of Units ( SI ) , the standard unit of area is the square metre ( written as m2 ) , which is the area of a square whose sides are one metre long . A shape with an area of three square metres would have the same area as three such squares . In mathematics , the unit square is defined to have area one , and the area of any other shape or surface is a dimensionless real number . There are several well-known formulas for the areas of simple shapes such as triangles , rectangles , and circles . Using these formulas , the area of any polygon can be found by dividing the polygon into triangles . For shapes with curved boundary , calculus is usually required to compute the area . Indeed , the problem of determining the area of plane figures was a major motivation for the historical development of calculus .
In biology a population is all the organisms of the same group or species , which live in a particular geographical area . The area of a sexual population is the area where inter-breeding is potentially possible between any pair within the area , and where the probability of interbreeding is greater than the probability of cross-breeding with individuals from other areas . In sociology , population refers to a collection of humans and their entire race . Demography is a social science which entails the statistical study of populations . Population , in a more simple term , is the number of people in a city or town , region , country or world ; population is usually determined by a process called census ( a process of collecting , analyzing , compiling and publishing data ) .
Ambaca is a town and municipality in Cuanza Norte Province in Angola . In the XVIIth century , the Portuguese colonial authorities built a fort in the Camabatela village , near the Lucala River margin .
Banga is a town and municipality in the Cuanza Norte Province of Angola .
Bolongongo is a town and municipality in Cuanza Norte Province in Angola .
Bula Atumba is a town and municipality in the province of Bengo , Angola .
Cambambe is a municipality in Cuanza Norte Province in Angola . It is the site of a hydroelectric dam on the Cuanza River . Cambambe also contains ruins from the 17th-century Portuguese settlement of the area , including the Igreja da Nossa Senhora do Rosário and the Fortress of Kambambe .
Dondo is a town , with a population of 64,643 ( 2014 ) , and a commune in the municipality of Cambambe , province of Cuanza Norte , Angola .
Cazengo is a town and municipality in Cuanza Norte Province in Angola .
N'dalatando , formerly Vila Salazar , is a town , with a population of 161,584 ( 2014 ) , and a commune in the municipality of Cazengo , province of Cuanza Norte , Angola . It is also the seat of the Cazengo municipality and the provincial capital .
Dembos is a town and municipality in Cuanza Norte Province in Angola .
Quibaxe is a town and commune in the municipality of Dembos , province of Bengo , Angola .
Golungo Alto is a town , with a population of 19,992 ( 2014 ) , and a municipality in Cuanza Norte Province in Angola . The writer Rosária da Silva was born in Golungo Alto in 1959 .
Gonguembo , also NGonguembo , is a town and municipality in Cuanza Norte Province in Angola . The population is 6,865 ( 2014 ) in an area of 1,400 km² . The municipality consists of the communes Camame , Cavunga and NGonguembo ( Quilombo dos Dembos ) .
Lucala is a town , with a population of 19,422 ( 2014 ) , and a municipality in Cuanza Norte Province in Angola .
Pango Aluquém is a town and municipality in Bengo Province in Angola .
Quiculungo is a town and municipality in Cuanza Norte Province in Angola .
Samba Cajú is a town and municipality in Cuanza Norte Province in Angola .