His antecedents were:

1.-the certificates of composition, during the Spanish colonial period. The certificate of composition was a document, consisting of a parchment with the basic data written by hand, which identified the sailors coming from Europe with the primary objective of controlling who crossed the Atlantic, placing special emphasis on the fact that they were Christians and were authorized by the crown for this;

2.-passports, the concept of a standard worldwide passport is relatively new, since it was created after the First World War, although its origin can be traced back thousands of years when the great Empires (Persian, Egyptian, Roman) they used letters, carried out to facilitate the passage of travelers and merchants through their territories and foreign territories;

3.-the "sauf conduit" or salconduit that we mentioned before, were assigned to guarantee the enemy an entry and exit passage through a kingdom with the purpose of establishing negotiations;

4.-passes, on short journeys of less than 8 leagues.

A the Municipal Archive of Albaida we have preserved 82 files that go from 1878 to 1939. Personal ID cards were the means to identify the person. The personal certificates contained, among other data, the following: a correlative order number that was later used in the documents, first and last names of the persons concerned (head of the family, wife, children, sons-in-law, grandchildren and other people who lived in the same house. Curiosity: if the head of the family was a widow or a dependent person appeared first), age (not very reliable because in different registers, people were the same age), nature, province, marital status, profession , housing numbers (street, number, flat), income, etc. 

Consider that as it was also a tax, it was very attractive for the public sector, since the entire adult population was subject to the same with different charges depending on their economic capacity, which also turns to this "tax on personal certificates" in one of the antecedents of income tax on natural persons.

The model of the first identity card he was chosen by a contest published in the BOE on May 10, 1946 in which citizens were urged to submit their sketches to win a prize of 30,000 pesetas. The winner was the model presented by Aquilino Rieusset Planchón, which was issued for the first time in Valencia on March 20, 1951. The first DNI model was green in color, included information such as occupation, profession or position and distinguished between four categories depending on the holder's economic situation. The second model of ID, is blue and incorporates data such as blood group and marital status, with the sex data disappearing. Later, the constitutional shield was incorporated, eliminating the economic categories, and recovering the sex data. The first computerized DNI was from 1990 and in 2006, the DNI incorporated the XIP, becoming an electronic document .