Early history
Proto-Celtic and Celticpeople were among the first known inhabitants of the area. Ruins of that period have been discovered in several areas. Archaeological findings reveal that there were also

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In 1996, UNESCO recognised Porto's historic centre as a World Heritage Site. Among the architectural highlights of the city, Porto Cathedral

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Breaking down the population further shows that there is a higher percentage of women than men. Estimates from 2016 show that the population is 55% female, compared to 45% male.

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Roads and bridges
The road system capacity is augmented by the Via de Cintura Interna or A20, an internal highway connected to several motorways and city exits,

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In 2001, Porto shared the designation European Culture Capital with Rotterdam. In the scope of these events, the construction of the major concert hall space Casa da Música, designed by the Dutch architect Rem Koolhaas, was initiated and finished in

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The city has a large number of public and private elementary and secondary schools, as well as kindergartens and nurseries. Due to the depopulation of the city's inner core, however, the number of school-agestudents dropped substantially in the 2000s and 2010s, forcing

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Porto plus the conurbationto which it belongs and has Porto municipality as its central core forming the nucleus of the conurbation, is a major industrial and financial center of both Portugal and the Iberian Peninsula. As the most important city in the heavily

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