Historiography of the May Revolution
Historiographical studies of the May Revolution started in the second half of the 19th century in Argentina and have extended to modern day. All historiographical perspectives agree in considering the May Revolution as the turning point that gave birth to the modern nation of Argentina, and that the Revolution was unavoidable in 1810. The main topics of disagreement between Argentine historians are the specific weight of the diverse causes of the May Revolution, who were the leaders of it among the different involved parties, whenever there was popular support for it or not, and whenever the loyalty to the captive Spanish king Ferdinand VII was real or an elaborate masquerade to conceal pro-independence purposes.
2012 May Day protests
The first May Day protests originated in several countries throughout Europe including Stockholm, Madrid, London, Brussels, and Geneva in 1890. While the demand for an 8-hour workday was the primary concern that protesters were protesting for, other demands included improved working conditions, universal suffrage, peace among nations, and international solidarity. While it originally started as a labor movement in protest for improved wages and working conditions, protesters - who are primarily from working class backgrounds - now demonstrate for celebratory purposes and tradition while many others do it to create change.