Mexico Europeans. In 1521, the Spanish Empire conquered and colonized the territory from its politically powerful base in Mexico-Tenochtitlan (part of Mexico City), which was administered as the viceroyalty of New Spain. Three centuries later, the territory became a nation state following its recognition in 1821 after the colony's Mexican War of Independence. The post-independence period was tumultuous, characterized by economic inequality and many contrasting political changes. The Mexican–American War (1846–1848) led to a territorial cession of the extant northern territories to the United States. The Pastry War, the Franco-Mexican War, a civil war, two empires, and the Porfiriato occurred in
Regiment of Artillery of the Nation Regiment of Artillery of the Nation The Regiment of Artillery of the Nation () was an Argentine regiment established in 1812 and disbanded in 1820. It fought in the Argentine War of Independence. During the times of the Viceroyalty of the Río de la Plata, the artillery was managed by the "Royal Body of Artillery". The Primera Junta, the government since the May Revolution, disbanded it and created instead the "Regiment of Flying Artillery" on May 29, 1810, relocating some members of the former one. The "Regiment of Flying Artillery" was disbanded in 1812, and replaced by the "Regiment of