quality:correction
Portuguese colonization

Portuguese explorer Paulo Dias de Novais founded Luanda on 25 January 1576 as "São Paulo da Assumpção de Loanda". He had brought one hundred families of settlers and four hundred soldiers. Most of the Portuguese community lived within the fort. Several sources from as early as the 17th century called the city "St. Paul de Leonda".

In 1618, the Portuguese built the fortress called Fortaleza São Pedro da Barra, and they subsequently built two more: Fortaleza de São Miguel (1634) and Forte de São Francisco do Penedo (1765–66). Of these, the Fortaleza de São Miguel is the best preserved.

Luanda was Portugal's bridgehead from 1627, except during the Dutch rule of Luanda, from 1640 to 1648, as Fort Aardenburgh. The city served as the centre of slave trade to Brazil from c. 1550 to 1836. The slave trade was conducted mostly with the Portuguese colony of Brazil; Brazilian ships were the most numerous in the port of Luanda. This slave trade also involved local merchants and warriors who profited from the trade. During this period, no large scale territorial conquest was intended by the Portuguese; only a few minor settlements were established in the immediate hinterland of Luanda, some on the last stretch of the Kwanza River.

In the 17th century, the Imbangala became the main rivals of the Mbundu in supplying slaves to the Luanda market. In the 1751, between 5,000 and 10,000 slaves were annually sold. By this time, Angola, a Portuguese colony, was in fact like a colony of Brazil, paradoxically another Portuguese colony. A strong degree of Brazilian influence was noted in Luanda until the Independence of Brazil in 1822.

In the 19th century, still under Portuguese rule, Luanda experienced a major economic revolution. The slave trade was abolished in 1836, and in 1844, Angola's ports were opened to foreign shipping. By 1850, Luanda was one of the greatest and most developed Portuguese cities in the vast Portuguese Empire outside Continental Portugal, full of trading companies, exporting (together with Benguela) palm and peanut oil, wax, copal, timber, ivory, cotton, coffee, and cocoa, among many other products. Maize, tobacco, dried meat, and cassava flour are also produced locally. The Angolan bourgeoisie was born by this time.

In 1889, Governor Brito Capelo opened the gates of an aqueduct which supplied the city with water, a formerly scarce resource, laying the foundation for major growth.