Some flag facts about the flag of Argentina:

Triband design composed of three equally wide bands in the colors of light blue, white and light blue
Created by Manual Belgrano and first raised on February 27, 1812 at the city of Rosario
The yellow ‘Sun of May’ symbol was added to the center in 1818
The Sun of May refers to the May Revolution between the 18th and 25th of May, 1810
The May revolution marked the beginning of the independence from the Spanish Empire
The sun symbol was also used in traditional European heraldry in which it was called ‘the Sun in His Splendour’ or ‘the Sun in His Glory’
Flag was officially adopted on February 27, 1812