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The first change in the Puerto Rican language policy. It introduced teaching all subjects in English in the public schools which was very much in line with the assimilationist orientation of the moment.
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The Official Language Act granted official status to both English and Spanish.
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Theodore Roosevelt's Commissioner of Education re-establish English as the medium of instruction in all grades.
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The shifts in language policy continued and in 1917 there was a change toward a more nationalistic view, Spanish was reinstated as the medium of instruction for the first four grades.
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Commissioner of Education, José Padin introduce a language policy which required all subjects except English to be taught in Spanish in the first eight grades.
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The language policy shifted again toward assimilation when Blaton S. Winthrop, named governor by President Franklin Roosevelt, made English the language of instruction in all grades.
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English was re-established as the language of instruction in the secondary schools.
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The first Puerto Rico's Governor elected by Puerto Rican, Luis Munoz Marin, who established Spanish as the language of instruction in all grades.
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The language policy was Spanish Only.
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Law Number 4, April 5, 1991, was revoked and substituted in 1993 for Law Number 1 January 28, 1993 a Pro Statehood Party language policy which established both English & Spanish as official languages on the island.
