“May 1 is known as Labor Day and is a public holiday in the Philippines. On this day, labor organizations and unions hold protests in major cities. On May 1, 1903, during theAmerican colonial period the Union Obrera Democratica Filipina (Filipino Democratic Labor Union) held a 100,000-person^[52] rally in front of the Malacañan Palace demanding workers’ economic rights and Philippine independence.^{[citation needed]} Ten years later, the first official^{[by whom?]} celebration was held on May 1, 1913 when 36 labor unions convened for a congress in Manila.^[52] On May 1, 2001, a mass demonstration occurred near Malacañang Palace known as EDSA 3 or May 1 Riots.” *wikipedia