San Luis Potosí in the context of "Bajío"

Veracruz, officially the Free and Sovereign State of Veracruz de Ignacio de la Llave, is one of the 31 states which, along with Mexico City, comprise the 32 Federal Entities of Mexico. Located in eastern Mexico, Veracruz is bordered by seven states: Tamaulipas, San Luis Potosí, Hidalgo, Puebla, Oaxaca, Chiapas, and Tabasco. Veracruz is divided into 212 municipalities, and its capital city is Xalapa-Enríquez.

Veracruz has a significant share of the coastline of the Gulf of Mexico on the east of the state. The state is noted for its mixed ethnic and indigenous populations, and its cuisine reflects the many cultural influences that have come through the state because of the importance of the port of Veracruz. In addition to the capital city, the state's largest cities include Veracruz, Coatzacoalcos, Córdoba, Minatitlán, Poza Rica, Boca Del Río and Orizaba.

Tamaulipas, officially the Free and Sovereign State of Tamaulipas, is a state in Mexico; it is one of the 31 states which, along with Mexico City, comprise the 32 federated entities of Mexico. It is divided into 43 municipalities.

It is located in northeast Mexico and is bordered by the states of Nuevo León to the west, San Luis Potosí to the southwest, and Veracruz to the southeast. To the north, it has a 370 km (230 mi) stretch of the U.S.–Mexico border with the state of Texas, and to the east it is bordered by the Gulf of Mexico. In addition to the capital city, Ciudad Victoria, the state's largest cities include Reynosa, Matamoros, Nuevo Laredo, Tampico, and Mante.

Hidalgo, officially the Free and Sovereign State of Hidalgo, is one of the 31 states which, along with Mexico City, constitute the 32 federal entities of Mexico. It is divided into 84 municipalities and its capital city is Pachuca de Soto. It is located in east-central Mexico and is bordered by San Luis Potosí and Veracruz on the north, Puebla on the east, Tlaxcala and State of Mexico on the south and Querétaro on the west.

In 1869, Benito Juárez created the State of Hidalgo and made Pachuca its capital city; "de Soto" was added later in recognition of Manuel Fernando Soto [es], who is considered the most important driving force in creating the state. The state was named after Miguel Hidalgo y Costilla, the initiator of the Mexican War of Independence.

Guanajuato, officially the Free and Sovereign State of Guanajuato, is one of the 32 states that make up the Federal Entities of Mexico. It is divided into 46 municipalities and its capital city is Guanajuato.

It is located in central Mexico and is bordered by the states of Jalisco to the west, Zacatecas to the northwest, San Luis Potosí to the north, Querétaro to the east, and Michoacán to the south. It covers an area of 30,608 km (11,818 sq mi). The state is home to several historically important cities, especially those along the "Bicentennial Route", which retraces the path of Miguel Hidalgo y Costilla's insurgent army at the beginning of the Mexican War of Independence. This route begins at Dolores Hidalgo, and passes through the Sanctuary of Atotonilco, San Miguel de Allende, Celaya, and the capital of Guanajuato. Other important cities in the state include León, the state's biggest city, Salamanca, and Irapuato. The first town established by the Spaniards in Guanajuato is Acámbaro while the first to be named a city is Salvatierra.

Querétaro, officially the Free and Sovereign State of Querétaro, is one of the 32 federal entities of Mexico. It is divided into 18 municipalities. Its capital city is Santiago de Querétaro. It is located in north-central Mexico, in a region known as Bajío. It is bordered by the states of San Luis Potosí to the north, Guanajuato to the west, Hidalgo to the east, México to the southeast and Michoacán to the southwest.

The state is one of the smallest in Mexico, but also one of the most heterogeneous geographically, with ecosystems varying from deserts to tropical rainforest, especially in the Sierra Gorda, which is filled with microecosystems. The area of the state was located on the northern edge of Mesoamerica, with both the Purépecha Empire and Aztec Empire having influence in the extreme south, but neither really dominating it. The area, especially the Sierra Gorda, had a number of small city-states, but by the time the Spanish arrived, the area was independent from imperial powers. Small agricultural villages and seminomadic peoples lived in the area. Spanish conquest was focused on the establishment of Santiago de Querétaro, which still dominates the state culturally, economically and educationally.

The Huastec /ˈwɑːstɛk/ or Téenek (contraction of Te' Inik, "people from here"; also known as Huaxtec, Wastek or Huastecos) are an Indigenous people of Mexico, living in the La Huasteca region including the states of Hidalgo, Veracruz, San Luis Potosí and Tamaulipas concentrated along the route of the Pánuco River and along the coast of the Gulf of Mexico.

There are approximately 66,000 Huastec speakers today, of which two-thirds are in San Luis Potosí and one-third in Veracruz, although their population was probably much higher, as much as half a million, when the Spanish arrived in 1529.

Zacatecas, officially the Free and Sovereign State of Zacatecas, is one of the 31 states of Mexico. It is divided into 58 municipalities and its capital city is Zacatecas.

It is located in north-central Mexico and is bordered by the states of Durango to the northwest, Coahuila to the north, Nayarit to the west, San Luis Potosí and Nuevo León to the east, and Jalisco, Guanajuato and Aguascalientes to the south. The state is best known for its rich deposits of silver and other minerals, its colonial architecture and its importance during the Mexican Revolution. Its main economic activities are mining, agriculture and tourism.

Chichimeca (Spanish: [tʃitʃiˈmeka] ) is the name that the Nahua peoples of Mexico generically applied to nomadic and semi-nomadic peoples who were established in present-day Bajío region of Mexico. Chichimeca carried the same meaning as the Roman term "barbarian" that described Germanic tribes. The name, with its pejorative sense, was adopted by the Spanish Empire. "For the Spanish, the Chichimecas were a wild, nomadic people who lived north of the Valley of Mexico. They had no fixed dwelling places, lived by hunting, wore little clothing and fiercely resisted foreign intrusion into their territory, which happened to contain silver mines the Spanish wished to exploit." Chichimeca was used as a broad and generalizing term by outsiders, writing, "[it] was used by both Spanish and Nahuatl speakers to refer collectively to many different people who exhibited a wide range of cultural development from hunter-gatherers to sedentary agriculturalists with sophisticated political organizations." They practiced animal sacrifice, and they were feared for their expertise and brutality in war.

The Chichimeca War (1550–1590) ended with the Spanish making favorable peace terms with the Chichimeca. Spanish/Chichimeca interaction resulted in a "drastic population decline in population of all the peoples known collectively as Chichimecas, and to their eventual disappearance as peoples of all save the Pames of San Luis Potosí and the related Chichimeca-Jonaz of the Sierra Gorda in eastern Guanajuato." In modern times, only one ethnic group is customarily referred to as Chichimecs, namely the Chichimeca Jonaz, a few thousand of whom live in the state of Guanajuato.