In March 1956, the Argentine military government published Decree 4161, which banned any references to the ousted President Juan Domingo Perón and the symbols associated with his political movement, Peronism. This sweeping legislation made it illegal to display images of Perón, use terminology related to his party, or even perform songs hailed by his supporters. The decree applied nationwide and was a significant move to suppress Peronism and its influence in Argentina following Perón's overthrow in September 1955.

The decree had severe penalties for non-compliance, ranging from prison sentences of 30 days to six years, along with hefty fines that could reach a million pesos. This harsh legislation was part of a broader strategy by the ruling military regime, led by General Pedro Eugenio Aramburu, to dismantle Peronist ideology and prevent a resurgence of Perón's political legacy. These actions underscore the extent of political repression in Argentina during the 1950s and the lengths to which the government went to erase Perón's influence from national discourse.

As the nation marks the 70th anniversary of the decree, it serves as a reminder of the tensions and divisions in Argentine politics that continue to resonate today. The legacy of Perón and Peronism remains a contentious issue, illustrating the challenges of reconciling a complex historical narrative that shapes contemporary political identities in Argentina. The implications of such historical decrees are felt even now as political factions continue to reference this tumultuous period in the country's past, highlighting the ongoing challenges of political repression and freedom of expression.