To mark the holiday, various patriotic ceremonies take place in Montevideo, the capital of Uruguay. From Insurrection to State Organization, 1820-30. This formula, inspired by the Artigas The United States and Uruguay established diplomatic relations in 1867. Weather is lower than during local summer and crowds get thinner. The sandwich is traditionally topped with Salsa Golf which is a mixture of ketchup and mustard and served atop a plain white bun.