The flag of Argentina is a triband, composed of three equally wide horizontal bands coloured light blue and white. There are multiple interpretations on the reasons for those colors. The flag was created by Manuel Belgrano, in line with the creation of the Cockade of Argentina, and was first raised at the city of Rosario on February 27, 1812, during the Argentine War of Independence. The National Flag Memorial was later built on the site.
From wikipedia.org