Camino Real de Tierra Adentro in the context of "Mexico City"

Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundaries with the Pacific Ocean to the west, the Caribbean Sea to the southeast, and the Gulf of Mexico to the east. Mexico covers 1,972,550 km (761,610 sq mi), and is the thirteenth-largest country in the world by land area. With a population exceeding 130 million, Mexico is the tenth-most populous country in the world and is home to the largest number of native Spanish speakers. Mexico City is the capital and largest city, which ranks among the most populous metropolitan areas in the world.

Human presence in Mexico dates back to at least 8,000 BC. Mesoamerica, considered a cradle of civilization, was home to numerous advanced societies, including the Olmecs, Maya, Zapotecs, Teotihuacan civilization, and Purépecha. Spanish colonization began in 1521 with an alliance that defeated the Aztec Empire, establishing the colony of New Spain with its capital at Tenochtitlan, now Mexico City. New Spain became a major center of the transoceanic economy during the Age of Discovery, fueled by silver mining and its position as a hub between Europe and Asia. This gave rise to one of the largest multiracial populations in the world. The Peninsular War led to the 1810–1821 Mexican War of Independence, which ended Peninsular rule and led to the creation of the First Mexican Empire, which quickly collapsed into the short-lived First Mexican Republic. In 1848, Mexico lost nearly half its territory to the American invasion. Liberal reforms set in the Constitution of 1857 led to civil war and French intervention, culminating in the establishment of the Second Mexican Empire under Emperor Maximilian I of Austria, who was overthrown by Republican forces led by Benito Juárez. The late 19th century saw the long dictatorship of Porfirio Díaz, whose modernization policies came at the cost of severe social unrest. The 1910–1920 Mexican Revolution led to the overthrow of Díaz and the adoption of the 1917 Constitution. Mexico experienced rapid industrialization and economic growth in the 1940s–1970s, amidst electoral fraud, the Tlatelolco massacre, and economic crises. The late 20th century saw a shift towards neoliberalism, marked by the signing of the North American Free Trade Agreement (NAFTA) in 1994, amidst unrest in Chiapas.

The Bajío (the Lowlands) is a cultural and geographical region within the central Mexican plateau which roughly spans from northwest of Mexico City to the main silver mines in the northern-central part of the country. This includes (from south to north) the states of Querétaro, Guanajuato, parts of Jalisco (Centro, Los Altos de Jalisco), Aguascalientes and parts of Zacatecas, San Luis Potosí and Michoacán.

Located at the border between Mesoamerica and Aridoamerica, El Bajío saw relatively few permanent settlements and big civilizations during Pre-Columbian history, being mostly inhabited by the Otomi and semi-nomadic tribes known to the Aztecs as the "Chichimeca" peoples (poorly attested conglomerate of Uto-Nahua groups, from whom the Toltec and the Aztecs were probably descended). The tribes that inhabited the Bajío proved to be some of the hardest to conquer for the Spanish—peace was ultimately achieved via truce and negotiation—but due to its strategic location in the Silver Route, it also drew prominent attention from Europe, and some of the flagship Mexican colonial cities were built there, such as Zacatecas and Guanajuato. Abundant mineral wealth and favorable farming conditions would soon turn the region into the wealthiest of New Spain. At the beginning of the 19th century, El Bajío was also the place of the ignition of the Mexican War of Independence, and saw most of its battles during the initial phase of the war, including the Cry of Dolores, the storming of the Alhóndiga de Granaditas and the Battle of Calderón Bridge.

Valle de Allende is the municipal seat and largest city of the municipality of Allende in the Mexican state of Chihuahua. Originally named Valle de San Bartolomé for Bartholomew the Apostle, it was founded in 1569 by Franciscan friars. The city is one of the oldest in Chihuahua.

The city received its current name in 1825 in honor of Ignacio Allende, a military leader during the Mexican War of Independence. It is part of the "El Camino Real de Tierra Adentro" (site 1351-059)

Albuquerque, also known as ABQ, Burque, Duke City, or the Q, is the most populous city in the U.S. state of New Mexico, and the county seat of Bernalillo County. Founded in 1706 as La Villa de Alburquerque by Santa Fe de Nuevo México governor Francisco Cuervo y Valdés, and named in honor of Francisco Fernández de la Cueva, 10th Duke of Alburquerque and Viceroy of New Spain, it was an outpost on El Camino Real, linking Mexico City to the northernmost territories of New Spain.

Located in the Albuquerque Basin, the city is flanked by the Sandia Mountains to the east and the West Mesa to the west, with the Rio Grande and its bosque flowing north-to-south through the middle. According to the 2020 census, Albuquerque had 564,559 residents, making it the 32nd most populous city in the U.S. and the fourth largest in the Southwest. The Albuquerque metropolitan area had 955,000 residents in 2023, and forms part of the Albuquerque–Santa Fe–Los Alamos combined statistical area, which had a population of 1,162,523.

Aguascalientes (Spanish pronunciation: [ˌaɣwaskaˈljentes] , lit. "hot waters" in Spanish) is the capital of the Mexican state of Aguascalientes and its most populous city, as well as the head of the Aguascalientes Municipality, with a population of 948,990 inhabitants in 2012 and 1,225,432 in the metro area. The metropolitan area also includes the municipalities of Jesús María and San Francisco de los Romo. It is located in North-Central Mexico, which roughly corresponds to the Bajío region within the central Mexican plateau. The city stands on a valley of steppe climate at 1880 meters above sea level, at 21°51′N 102°18′W / 21.850°N 102.300°W / 21.850; -102.300.

Originally the territory of the nomadic Chichimeca peoples, the city was founded on October 22, 1575, by Spanish families relocating from Lagos de Moreno under the name of Villa de Nuestra Señora de la Asunción de las Aguas Calientes (Village of Our Lady of the Assumption of the Hot Waters), in reference to the chosen patron saint and the many thermal springs found close to the village, which still remain to this day. It would serve as an outpost in the Silver Route, while politically, it was part of the kingdom of Nueva Galicia. In 1835, President Antonio López de Santa Anna made Aguascalientes the capital of a new territory in retaliation to the state of Zacatecas, eventually becoming capital of a new state in 1857. During the Porfiriato era, Aguascalientes was chosen to host the main workshops of the Mexican Central Railway company; bringing an industrial and cultural explosion. The city hosted the Revolutionary Convention of 1914, an important meeting of war generals during the Mexican Revolution.

Jornada del Muerto was the name given by the Spanish conquistadors to this desert basin, and the almost waterless 90-mile (140 km) trail across the Jornada beginning north of Las Cruces and ending south of Socorro, New Mexico. The name translates from Spanish as "Dead Man's Journey" or "Route of the Dead Man". The trail was part of the Camino Real de Tierra Adentro which led northward from central colonial New Spain, present-day Mexico, to the farthest reaches of the viceroyalty in northern Nuevo México Province (the area around the upper valley of the Rio Grande).

Spaceport America is located in the middle portion of the Jornada del Muerto at an elevation of 4,700 ft (1,400 m). The Trinity nuclear test site, the location of the first test of an atomic bomb in 1945 is in the northern portion of the Jornada.