The country is fairly homogeneous linguistically and religiously. Native Portuguese are ethnically a combination of pre-Roman Iberians and Celts along with some other contributions by Romans, Germanic (Visigoths, Suebi), Jews and Moors (mostly Berbers and some Arabs). In the 2001 census, the population was 10,356,117, of which 51.7% was female, 48.2% was male and 0.1% was undefined or mixed. Portugal, long a country of emigration, has now become a country of net immigration, and not just from the former Indian and African colonies; by the end of 2003, legal immigrants represented about 5% of the

Douro river crossing Grande Porto, Portugal's second populated subregion

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The educational system is divided into preschool (for those under age 6), basic education (9 years, in three stages, compulsory), secondary education (3 years), and higher education (university and polytechnic). Portuguese universities have existed since 1290. The oldest Portuguese university was first established in Lisbon before moving to Coimbra. Universities are usually organized into faculties. Institutes and schools are also common designations for autonomous subdivisions of Portuguese higher education institutions, and are always used in the polytechnical system. The Bologna process has been adopted since 2006 by Portuguese universities and polytechnical institutes.

The tower of the University of Coimbra, Coimbra

Scientific and technological research activities in Portugal are mainly conducted within a network of R&D units belonging to public universities and state-managed autonomous research institutions like the INETI - Instituto Nacional de Engenharia, Tecnologia e Inovação. The funding of this research system is mainly conducted under the authority of the Ministry of Science, Technology and Higher Education. The largest R&D units of the public universities by number of publications which achieved significant international recognition, include biosciences research institutions like the Instituto de Medicina Molecular, the IPATIMUP and the Instituto de Biologia Molecular e Celular, among others. Among the largest non-state-run research institutions in Portugal are the Instituto Gulbenkian de Ciência and the Champalimaud Foundation which yearly awards one of the highest monetary prizes of any science prize in the world. A number of both national and multinational high-tech and industrial companies, are also responsible for research and development projects.

Portugal have entered into cooperation agreements with MIT (USA) and other North American institutions in order to further develop and increase the effectiveness of Portuguese higher education.

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The Portuguese legal system is part of the civil law legal system, also called the continental family legal system. Until the end of the 19th century, French law was the main influence. Since then the major influence has been German law. The main laws include the Constitution (1976, as amended), the Civil Code (1966, as amended) and the Penal Code (1982, as amended). Other relevant laws are the Commercial Code (1888, as amended) and the Civil Procedure Code (1961, as amended). Portuguese law applied in the former colonies and territories and continues to be the major influence for those countries.

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