Maria Lorena Leiva Salinas establishing that no one could be forced to exercise personal labour without fair remuneration and full consent. Various constitutionalists agree that this Magna Carta is a true proclamation of human rights. In a specific section called “Of the Peasantry”, the state, for the first time, “recognises and guarantees the legal existence of indigenous communities”, recognising them a right to their own legislation and to be instructed in integral indigenous schools. However, these advances, albeit significant, were not expressed in the rest of the constitution, which probably reflected the national situation, in which, as pointed out by Zavaleta, they had only a sporadic presence within the framework of the state18. It was in the Constituent Assembly of 1938, when, for the first time, they participated alongside oligarchic and elitist sectors, veterans of war and representatives of the workers, trade unions and left-wing intellectuals. There were two very close consecutive constitutional reforms, one on 24 November 194519 and the second on 26 November 194720. The first did not change what had been regulated in terms of acquiring nationality, and even maintained what the 1938 constitution added regarding the loss of nationality. However, the 194721 amendment introduced very substantial changes such as: 1. That all those born in the territory of the Republic are Bolivians, except the children of foreigners servicing their governments and the children of foreigners who are transient, delegated to the latter, that at the age of eighteen they can decide if they wish to adopt the nationality of their parents or the Bolivian one. It also introduced the possibility of acquiring Bolivian nationality for foreigners who had resided in Bolivia for 2 years and who declare before the respective Departmental Municipal Council their desire to acquire it, having to renounce to their previous nationality. The requirement of permanence of two years was reduced to one in the following cases: a) those who have a Bolivian spouse or children; b) those who own real estate or introduce an industry or invention useful for the community; c) those who are railway and transport businessmen; d) those who are religious officials; e) those who are immigrants hired by the Government. This constitution granted many advantages in terms of acquiring nationality, it opened the possibility to many people and was not as limited as previous constitutions. It also recuperates the loss of nationality for acquiring a foreign one, noting that it is enough to be domiciled in Bolivia to recover it. This was the longest period in which there were no constitutional reforms. On 2 February 196722 the constitution is modified once again, adding an issue to the acquisition of nationality. Article 37 of the constitution establishes that nationality by naturalisation can be obtained by Spaniards and Latin-Americans who acquire Bolivian nationality without renouncing their nationality of origin, where there are reciprocal agreements of plural nationality with their respective governments”. Never before had the legislation spoken of plural nationality. According to the historical context and as noted above, Bolivia subscribes a dual nationality agreement with Spain, however, this article leaves open the possibility that a person can obtain more than one nationality. 18 René Zavaleta. “Consideraciones generales sobre la historia de Bolivia (1932-1971)”. En: América Latina, historia de medio siglo. México: Ed. S XXI, 1979. 19 Constitución Política del Estado de 1945 20 Constitución Política del Estado de 1947 21 Constitución Política del Estado de 1947 22 Constitución Política del Estado de 1967 6 RSCAS/GLOBALCIT-CR 2020/2 - © 2020 Author