America Day
America Day is held on April 14. Día de las Américas [es] with the support of the Organization of American States. This event in the second decade of the month April is annual. 
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The Day of the Americas is an annual celebration that takes place on April 14 in all the American republics, as a symbol of their sovereignty and their voluntary union in a continental community. Each year, either by presidential or legislative enactment, this celebration is commemorated in cities, towns and communities.
The first Day of the Americas was celebrated throughout the Americas in 1931. April 14 was chosen as the date in 1890 when, by resolution of the First American International Conference (held in the District of Columbia between October 1889 and April 1890), the Union of American Republics and its permanent secretariat, the Commercial Bureau of the American Republics, were created. These gave way to the Pan American Union and finally to the current Organization of American States (OAS) in 1948.
Honduras, Guatemala and Haiti declared April 14 a national holiday. In these and other nations of the then Pan American Union there were diplomatic receptions, public and civil celebrations, programs in schools and a large number of proclamations promoting the principles of Pan Americanism.
Similar holidays and events, festivals and interesting facts
International Kiss Day on April 13
International Moment of Laughter Day on April 14 (is focuses on laughter as a way to de-stress);
International Goalkeeper Day on April 14
World Chagas Disease Day on April 14
World Art Day on April 15
Universal Day of Culture on April 15
International Biomedical Laboratory Science Day on April 15 (is celebrated annually on 15 April to promote and acknowledge the role of biomedical laboratory professionals in diagnostic and preventative healthcare organisations)