North America metropolitan area by population in North America: Greater Mexico City. Canada also breaks into the top ten largest metropolitan areas with the Toronto metropolitan area having six million people. The proximity of cities to each other on the Canada–United States border and Mexico–United States border has led to the rise of international metropolitan areas. These urban agglomerations are observed at their largest and most productive in Detroit–Windsor and San Diego–Tijuana and experience large commercial, economic, and cultural activity. The metropolitan areas are responsible for millions of dollars of trade dependent on international freight. In Detroit-Windsor the Border Transportation Partnership study
History of libraries in Latin America Portuguese royal family; the collection was left behind in the country following the terms of the treaty that allowed the royal family's return. The library is one of the largest in the Americas, with over 9 million items in the collection. The Biblioteca Nacional organized the first classes in library science in South America and pioneered modernization. History of libraries in Latin America The history of libraries in Latin America dates back to before the conquest of the continent by the Spanish. Although the indigenous peoples of Mexico, Central America, and South America had developed a written language and, in