The May Day Revolution, also known as the May Revolution, is a very significant holiday in Argentina. It stands to commemorate the week-long series of events that took place from May 18 to 25, 1810 in Buenos Aires, which led to the removal of the Spanish colonial administration and the eventual declaration of independence of Argentina. The holiday is marked on May 25th each year and is seen as the first successful revolution in the South American Independence process.

The celebrations of the May Day Revolution in Argentina are grand and nationwide, involving numerous public and private events. Families gather to remember the history, courage, and sacrifice of the revolutionaries. Many people dress in traditional clothing from the Revolutionary era, participate in parades, and engage in activities reminiscent of the half colonial, half indigenous society of Argentina in the late 18th century. One of the notable traditions is the public recitation of the patriotic poem 'A la Escarapela', followed by the release of balloons in the colors of the Argentine flag.

Schools and local communities in Argentina carry out various activities such as singing, dancing, and theatrical performances depicting the events of the May Revolution. Public figures and officials, including the President, traditionally attend a service at the Buenos Aires Metropolitan Cathedral to honor the Avalos, the first Argentine head of state. The holiday serves as a strong reminder of the nation’s history, contributing to the strong sense of national identity and pride found among the Argentinian people.