Answer
The Congress of Tucumán, also known as the Assembly of Tucumán, was the assembly that declared Argentine independence on July 9, 1816. The assembly met in the city of Tucumán in present-day Argentina from May 24, 1816, to July 9, 1816. The assembly was composed of representatives from the provinces of the United Provinces of Río de la Plata, which was the name of Argentina at the time.