The Southern Common Market, known as MERCOSUR, is a regional trade bloc in South America that promotes economic integration among its member countries. Established in 1991, its founding members include Argentina, Brazil, Paraguay, and Uruguay. The organization aims to facilitate free trade and the movement of goods, services, and people across borders. MERCOSUR also seeks to enhance political and social cooperation among its members. Over the years, it has expanded to include associate members and has established trade agreements with other countries and regions, fostering economic growth and collaboration in South America.