[1][2] Corretjer joined the "Literary Society of José Gautier Benítez", which later would be renamed the "Nationalist Youth", while he was still in elementary school.

The following year in 1936, two members of the Cadets of the Republic, the Nationalist youth organization, Hiram Rosado and Elías Beauchamp assassinated Colonel Riggs.

Judge Robert A. Cooper called for a new jury, this time composed of ten Americans and two Puerto Ricans, and a guilty verdict was reached.

[8] Corretjer was sent to the infamous La Princesa prison for one year in 1937, because he refused to hand over to the American authorities the Book of Acts of the Nationalists Party, as result of his political beliefs.

[9] In 1937 a group of lawyers, including a young Gilberto Concepción de Gracia, tried in vain to defend the Nationalists, but the Boston Court of Appeals, which held appellate jurisdiction over federal matters in Puerto Rico, upheld the verdict.

[9] On May 21, 1948, a bill was introduced before the Puerto Rican Senate which would restrain the rights of the independence and Nationalist movements on the archipelago.

The Senate, controlled by the Partido Popular Democrático (PPD) and presided by Luis Muñoz Marín, approved the bill that day.

[11] Under this new law it would be a crime to print, publish, sell, or exhibit any material intended to paralyze or destroy the insular government; or to organize any society, group or assembly of people with a similar destructive intent.

It made it illegal to display a Puerto Rican flag, sing a patriotic song, and reinforced the 1898 law that had made it illegal to display the Flag of Puerto Rico, with anyone found guilty of disobeying the law in any way being subject to a sentence of up to ten years imprisonment, a fine of up to US$10,000 (equivalent to $127,000 in 2023), or both.

According to Leopoldo Figueroa, a member of the Puerto Rico House of Representatives, the law was repressive and was in violation of the First Amendment of the US Constitution which guarantees Freedom of Speech.

[2] In the prologue of "Yerba bruja", Corretjer states it was not his intent to "dig up a mummy" but to bring to light "the splendor of the indigenous imagination that lives on in our own.

[2] Poetry Puerto Rican musician Roy Brown Ramírez set many of Corretjer's poems to music, particularly "Boricua en la luna", "En la vida todo es ir" (later versioned by artists such as Joan Manuel Serrat, Mercedes Sosa, Antonio Cabán Vale, Haciendo Punto en Otro Son, Fiel A La Vega, Lucecita Benítez and others), "Distancias", "Diana de Guilarte" and "Oubao-Moín".