Chalco de Díaz Covarrubias

Chālco [ˈt͡ʃaːɬko] was a complex pre-Columbian Nahua altepetl or confederacy in central Mexico. It was divided into the four sub-altepetl of Tlalmanalco/Tlacochcalco, Amaquemecan, Tenanco Texopalco Tepopolla and Chimalhuacan-Chalco, which were themselves further subdivided into altepetl tlayacatl, each with its own tlatoani (king). Its inhabitants were known as the Chālcatl [ˈt͡ʃaːɬkat͡ɬ] (singular) or Chālcah [ˈt͡ʃaːɬkaʔ] (plural). In the 14th and early 15th centuries, flower wars were fought between the Chalca and the Aztecs. Serious war erupted in 1446. According to the Amaqueme historian Chimalpahin, this was because the Chalca refused a Mexica demand to contribute building materials for the temple of Huitzilopochtli. Chalco was finally conquered by the Aztecs under Moctezuma I in or around 1465, and the kings of Chalco were exiled to Huexotzinco. The rulerships were restored by Tizoc in 1486, who installed new tlatoque. This was achieved, in part, by the diplomacy work carried out by the Chalcan musician Quecholcohuatl when he performed a politically-driven composition for Axayacatl in 1479. This story was recorded by Chimalpahin in the seventh of his Eight Relations (see The liberation of Chalco). Chalco paid more tribute to Tenochtitlan in the form of food than any other region in the Valley of Mexico, probably because of its fertile soil and location.The Spanish conquistadors Pedro de Alvarado and Bernardino Vázquez de Tapia reached Chalco in the fall of 1519. The Chalca allied with the Spaniards and participated in the defeat of the Aztecs.: 320  Hernán Cortés claimed Chalco for himself as an encomienda, but failed to maintain his possession of it. Chalco was designated a corregimiento by 1533. Several places outside the traditional region of Chalco were added to it in colonial times.

Tlapacoya is an important archaeological site in Mexico, located at the foot of the Tlapacoya volcano, southeast of Mexico City, on the former shore of Lake Chalco. Tlapacoya was a major site for the Tlatilco culture. Tlapacoya is known in particular for Tlapacoya figurines. These sophisticated earthware figurines were generally created between 1500 and 300 BCE and are representative of the Preclassic Period. Tlapacoya was also a manufacturing center for so-called "Dragon Pots" (see photo below). These flat-bottomed cylindrical bowls have white or buff surfaces incised with almost abstract Olmec-style drawings, generally of were-jaguars.

Xico is a city in the State of Mexico, Mexico. It serves as the municipal seat of Valle de Chalco municipality, with which it is, for all practical purposes, coterminous. The municipality lies adjacent to the east side of the Federal District (Distrito Federal) and is part of the Mexico City metropolitan area. The city and municipality lie on the old lakebed of Lake Chalco, which was drained like much of the Basin of Mexico. The city name comes from the nearby Xico hill (Cerro de Xico) and the name of the municipality comes from the old lake plus a reference to the "Programa Nacional de Solidaridad" (National Program of Solidarity) which was initiated here. The municipality's glyph and shield make reference to both names. It is a distinct entity from the city and municipality of Chalco, which is nearby. "Chalco" in both names refers to the Chalca tribe that were one of the original inhabitants of the area.

Valle de Chalco, officially named Valle de Chalco Solidaridad, is a municipality located in the State of Mexico, Mexico, on the eastern outskirts of the metropolitan area of Mexico City. Formerly part of the municipality of Chalco, it was split off as a separate entity in 1994, during the presidency of Salinas de Gortari, under his Programa Nacional de Solidaridad (National Solidarity Program). The municipality lies on the old bed of Lake Chalco, which was substantially drained in the nineteenth century. Technically, the municipal seat is Xico, after a high point of land that once formed an island, and now remains as a small hill within an otherwise monotonous, urban expanse. "Chalco" refers to the Chalca tribe, whose territory covered the area around the lake, prior to the Spanish conquest of the Aztec Empire. As of 2006, Chalco included part of the world's largest mega-slum, along with Ciudad Nezahualcoyotl and Ixtapaluca.

The 32nd federal electoral district of the State of Mexico (Spanish: Distrito electoral federal 32 del Estado de México) is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of 40 such districts in the State of Mexico. It elects one deputy to the lower house of Congress for each three-year legislative session by means of the first-past-the-post system. Votes cast in the district also count towards the calculation of proportional representation ("plurinominal") deputies elected from the fifth region. The 32nd district was created by the 1977 electoral reforms, which increased the number of single-member seats in the Chamber of Deputies from 196 to 300. Under that plan, the State of Mexico's seat allocation rose from 15 to 34. The new districts were first contended in the 1979 mid-term election.

The Nest (Spanish: El Nido) is an aviary located in Ixtapaluca, state of Mexico. Founded by veterinarian Jesús López Estudillo in the 1960s, it is a civil association created to preserve over 300 different species of birds, both Mexican and the rest of South America, Africa and Asia, mostly endangered. The association—formerly known as Wildlife (Spanish: Vida Silvestre)—also has a space for breeding and conservation of the most endangered species. The Nest is the most diverse aviary in the world and the third largest in Latin America. The logo is the quetzal, as Jesús López Estudillo was the first to achieve captive breeding of the bird, which had been a traditional symbol of freedom, characterized by not being able to survive outside its native habitat.

Ixtapaluca is a city and a municipality in the eastern part of the State of Mexico in Mexico. It lies between the Federal District and the western border of the state of Puebla. The name Ixtapaluca means "Where the salt gets wet".As of 2006, Ixta included part of the world's largest mega-slum, along with Chalco and Neza.

Acozac (Ixtapaluca) is an archaeological site located in the Municipality of Ixtapaluca, State of Mexico, Mexico. The site is at kilometer 30 of federal road México - Puebla, towards Ixtapaluca.

San Andres Míxquic is a community located in the southeast of the Distrito Federal (Mexico City) in the borough of Tláhuac. The community was founded by the 11th century on what was a small island in Lake Chalco. “Míxquic” means “in mesquite” but the community's culture for most of its history was based on chinampas, gardens floating on the lake's waters and tied to the island. Drainage of Lake Chalco in the 19th and 20th century eventually destroyed the chinampas but the community is still agricultural in nature, despite being officially in the territory of Mexico City. San Andres Míxquic is best known for its Day of the Dead commemorations, which consist of both ritual and cultural events lasting from 31 October to 2 November. These events draw thousands of Mexican and international visitors, and culminate in the Alumbrada, when the cemetery that surrounds the community's main church glows with thousands of candles and smoke from incense the evening of 2 November. This community was designated as a "Barrio Mágico" by the city in 2011.

Lake Zumpango (Spanish: Laguna de Zumpango; Nahuatl languages: Tzompanco, lit. 'string of scalps') is an endorheic basin located in the Valley of Mexico in the municipality of Zumpango and adjacent to the municipality of Teoloyucan. Tzompanco was formerly the northernmost of five interconnected lakes, covering about 1,500 square kilometers (580 sq mi) (the other lakes being Lake Xaltocan, Lake Xochimilco, Lake Chalco and Lake Texcoco). The Valley of Mexico was a centre for several pre-Columbian civilizations including Teotihuacan, the Toltec, and the Aztec Empire. After the conquest of the Aztec Empire, the Spaniards began to drain the lakes' waters to control flooding. Over the centuries Lake Zumpango lost it its inflows and outflows and became polluted by sewage and garbage dumps. However, in recent years, the lagoon is becoming cleaner again.

Lake Chalco was an endorheic lake formerly located in the Valley of Mexico, and was important for Mesoamerican cultural development in central Mexico. The lake was named after the ancient city of Chalco on its former eastern shore. Lake Chalco and Lake Xochimilco were the original habitat of the axolotl, an amphibian that is critically endangered due to urban destruction.

The twenty-seventh federal electoral district of the Federal District (Distrito electoral federal 27 del Distrito Federal) is a defunct federal electoral district of Mexico. Occupying a portion of what is today Mexico City, it was in existence from 1973 to 2018. During that time, it returned one deputy to the Chamber of Deputies for each three-year legislative session by means of the first-past-the-post system, electing its first in the 1973 mid-term election and its last in the 2015 mid-terms. From 1979 onwards, votes cast in the district also counted towards the calculation of proportional representation ("plurinominal") deputies elected from the country's electoral regions. The 25th, 26th and 27th districts were abolished in the 2017 redistricting process because the capital's population no longer warranted that number of seats in Congress.