The "Sun of May" is a national emblem of Argentina and Uruguay, symbolizing freedom and independence. It features a sun with a face and sixteen rays, representing the sun god Inti from Inca mythology. The emblem was first adopted during the May Revolution of 1810, which marked the beginning of the struggle for independence from Spanish rule. The design of the "Sun of May" is prominently displayed on the flags of both countries. It is also featured on the Argentine coat of arms and various official documents. The sun serves as a reminder of the values of liberty and the fight for self-determination in South America.