In this episode of "Puerto Rico a Living 'History'", we explore the historical and sociopolitical landscape of Puerto Rico during the late 1940s, focusing on the enactment and impact of the Gag Law, or "La Ley de Mordaza." This controversial law, aimed at suppressing nationalist activities and the display of the Puerto Rican flag, reveals the deep political tensions on the island. We delve into the law's severe restrictions on free speech and civil liberties, its broad application leading to mass arrests and the suppression of the nationalist movement. The episode also examines the law's broader societal impact, creating a pervasive atmosphere of fear and censorship, and concludes with the eventual repeal of the law in 1957, considering its long-lasting effects on Puerto Rican society and the enduring lessons about the protection of civil liberties.