Nationality is the specific condition of the inhabitants of a nation. The concept includes concepts related to social, spatial, cultural factors and policies. Nationality can be analysed from a sociological point of view, but also from a legal and political order.
The Gypsy nation, for example, is established in any fixed State. The fact of belonging to the Group therefore has to do with the origins and traditions of the people. There is no document recognised by a State indicating that an individual is a national of Gypsy.
On the other hand, other nationalities are closely linked to the State authority. The argentine, Spanish, Chilean nationality or any other country is documented with a certificate issued by a State to those who meet the necessary requirements, which encompasses everything into set of obligations and rights.
This type of nationality can vary according to the regulations in force. At some point in history, some countries allow children or grandchildren of their national population to benefit from their nationality, even if they are not born or if they have never set foot in the country of their ancestors.
In other words, nationality can be determined by the geographical area, the legislation or State authorities. Because of the dynamic nature of its concept, the same person can have more than one nationality.
Most of the time, the States authorize the exercise of a single active nationality; that is, even if the person in question has two nationalities, it cannot assert its rights and obligations with a single nationality at a time.