Mesoamerica is a historical region and cultural area comprising the modern day lands of central and southern Mexico, all of Belize, Guatemala, El Salvador, western Honduras, and the Greater Nicoya region of Nicaragua and Costa Rica. As a cultural area, Mesoamerica is defined by a mosaic of cultural traits developed and shared by its indigenous cultures.

In the pre-Columbian era, indigenous societies flourished in Mesoamerica for more than 3,000 years before the Spanish colonization of the Americas began on Hispaniola in 1493. In world history, Mesoamerica was the site of two historical transformations: (i) primary urban generation, and (ii) the formation of New World cultures from the mixture of the indigenous Mesoamerican people with the European, African, and Asian people who were introduced by the Spanish colonization. Mesoamerica is one of the six areas in the world where ancient civilizations arose independently (see cradle of civilization), and the second in the Americas, alongside the Caral–Supe in modern-day Peru. Mesoamerica is also one of only five regions of the world where writing is known to have independently developed (the others being ancient Egypt, India, Sumer, and China).

Beginning as early as 7000 BCE, the domestication of cacao, maize, beans, tomato, avocado, vanilla, squash and chili, as well as the turkey and dog, resulted in a transition from paleo-Indian hunter-gatherer tribal groupings to the organization of sedentary agricultural villages. In the subsequent formative period, agriculture and cultural traits such as a complex mythological and religious tradition, a vigesimal numeric system, a complex calendric system, a tradition of ball playing, and a distinct architectural style, were diffused through the area. Villages began to become socially stratified and develop into chiefdoms, and large ceremonial centers were built, interconnected by a network of trade routes for the exchange of luxury goods, such as obsidian, jade, cacao, cinnabar, Spondylus shells, hematite, and ceramics. While Mesoamerican civilization knew of the wheel and basic metallurgy, neither of these became technologically relevant.

Among the earliest complex civilizations was the Olmec culture, which inhabited the Gulf Coast of Mexico and extended inland and southwards across the Isthmus of Tehuantepec. Frequent contact and cultural interchange between the early Olmec and other cultures in Chiapas, Oaxaca, and Guatemala laid the basis for the Mesoamerican culture. This was facilitated by considerable regional communications in ancient Mesoamerica, especially along the Pacific coast.

In the subsequent preclassic period, complex urban polities began to develop among the Maya, with the rise of centers such as Aguada Fénix and Calakmul in Mexico; El Mirador, and Tikal in Guatemala, and the Zapotec at Monte Albán. During this period, the first true Mesoamerican writing systems were developed in the Epi-Olmec and the Zapotec cultures. The Mesoamerican writing tradition reached its height in the Classic Maya logosyllabic script.

In Central Mexico, the city of Teotihuacan ascended at the height of the Classic period; it formed a military and commercial empire whose political influence stretched south into the Maya area and northward. Upon the collapse of Teotihuacán around 600 CE, competition between several important political centers in central Mexico, such as Xochicalco and Cholula, ensued. At this time during the Epi-Classic period, the Nahua people began moving south into Mesoamerica from the North, and became politically and culturally dominant in central Mexico, as they displaced speakers of Oto-Manguean languages.

During the early post-Classic period, central Mexico was dominated by the Toltec culture, and Oaxaca by the Mixtec. The lowland Maya area had important centers at Chichén Itzá and Mayapán. Towards the end of the post-Classic period, the Aztecs of central Mexico built a tributary empire covering most of central Mesoamerica.

The distinct Mesoamerican cultural tradition ended with the Spanish conquest in the 16th century. Eurasian diseases such as smallpox and measles, which were endemic among the colonists but new to North America, caused the deaths of upwards of 90% of the indigenous people, resulting in great losses to their societies and cultures."Meso-America", Oxford English Reference Dictionary, 2nd ed. (rev.) 2002. () Oxford: Oxford University Press; p. 906.(2000): Atlas del México Prehispánico. Revista Arqueología mexicana. Número especial 5. Julio de 2000. Raíces/ Instituto Nacional de Antropología e Historia. México. Over the next centuries, Mesoamerican indigenous cultures were gradually subjected to Spanish colonial rule. Aspects of the Mesoamerican cultural heritage still survive among the indigenous people who inhabit Mesoamerica. Many continue to speak their ancestral languages and maintain practices hearkening back to their Mesoamerican roots.

Etymology and definition

The term Mesoamerica means "middle America" in Greek. Middle America often refers to a larger area in the Americas, but it has also previously been used more narrowly to refer to Mesoamerica. An example is the title of the 16 volumes of The Handbook of Middle American Indians. "Mesoamerica" is broadly defined as the area that is home to the Mesoamerican civilization, which comprises a group of peoples with close cultural and historical ties. The exact geographic extent of Mesoamerica has varied through time, as the civilization extended North and South from its heartland in southern Mexico.

The term was first used by the German ethnologist Paul Kirchhoff, who noted that similarities existed among the various pre-Columbian cultures within the region that included southern Mexico, Guatemala, Belize, El Salvador, western Honduras, and the Pacific lowlands of Nicaragua and northwestern Costa Rica. In the tradition of cultural history, the prevalent archaeological theory of the early to middle 20th century, Kirchhoff defined this zone as a cultural area based on a suite of interrelated cultural similarities brought about by millennia of inter- and intra-regional interaction (i.e., diffusion). Mesoamerica is recognized as a near-prototypical cultural area. This term is now fully integrated into the standard terminology of precolumbian anthropological studies. Conversely, the sister terms Aridoamerica and Oasisamerica, which refer to northern Mexico and the western United States, respectively, have not entered into widespread usage.

Some of the significant cultural traits defining the Mesoamerican cultural tradition are: Horticulture and plant use: sedentism based on maize agriculture; floating gardens; use of bark paper and agave (see also maguey) for ritual purposes, as a medium for writing, and the use of agave for cooking and clothing; cultivation of cacao; grinding of maize softened with ashes or lime; harpoon-shaped digging stick Clothing and personal articles: lip plugs, mirrors of polished stone, turbans, sandals with heels, textiles adorned with rabbit hair Architecture: construction of stepped pyramids; stucco floors; ball courts with stone rings (see the use of natural rubber and the practice of the ritual Mesoamerican ballgame) Record keeping: use of two different calendars (a 260-day ritual calendar and a 365-day calendar based on the solar year); use of locally developed pictographic and hieroglyphic (logo-syllabic) writing systems; numbers (see also vigesimal (base 20) number system); "century" of fifty-two years; eighteen-month calendar; screen-fold books Commerce: specialized markets, "department store" markets subdivided according to specialty Weapons and warfare: wooden swords with stone chips set into the edges (see macuahuitl), military orders (eagle knights and jaguar knights), clay pellets for blowguns, cotton-pad armor, traveling merchants who act as spies, wars for the purpose of securing sacrificial victims Ritual and myth: the practice of various forms of ritual sacrifice, including human sacrifice and quail sacrifice; paper and rubber as sacrificial offerings; a pantheon of gods or spirits; acrobatic flier dance (see the Danza de los Voladores and the Totonac flier dance); 13 as a ritual number; ritual period of 20 x 13 = 260 days; the mythic concept of one or more afterworlds and the difficult journey in reaching them; good and bad omen days; a religious complex based on a combination of shamanism and natural deities, and a shared system of symbols Language: a linguistic area defined by a number of grammatical traits that have spread through the area by diffusion

Geography

Located on the Middle American isthmus joining North and South America between ca. 10° and 22° northern latitude, Mesoamerica possesses a complex combination of ecological systems, topographic zones, and environmental contexts. These different niches are classified into two broad categories: the lowlands (those areas between sea level and 1000 meters) and the altiplanos, or highlands (situated between 1,000 and 2,000 meters above sea level). In the low-lying regions, sub-tropical and tropical climates are most common, as is true for most of the coastline along the Pacific and Gulf of Mexico and the Caribbean Sea. The highlands show much more climatic diversity, ranging from dry tropical to cold mountainous climates; the dominant climate is temperate with warm temperatures and moderate rainfall. The rainfall varies from the dry Oaxaca and north Yucatán to the humid southern Pacific and Caribbean lowlands.

Cultural sub-areas Several distinct sub-regions within Mesoamerica are defined by a convergence of geographic and cultural attributes. These sub-regions are more conceptual than culturally meaningful, and the demarcation of their limits is not rigid. The Maya area, for example, can be divided into two general groups: the lowlands and highlands. The lowlands are further divided into the southern and northern Maya lowlands. The southern Maya lowlands are generally regarded as encompassing northern Guatemala, southern Campeche and Quintana Roo in Mexico, and Belize. The northern lowlands cover the remainder of the northern portion of the Yucatán Peninsula. Other areas include Central Mexico, West Mexico, the Gulf Coast Lowlands, Oaxaca, the Southern Pacific Lowlands, and Southeast Mesoamerica (including northern Honduras).

Topography There is extensive topographic variation in Mesoamerica, ranging from the high peaks circumscribing the Valley of Mexico and within the central Sierra Madre mountains to the low flatlands of the northern Yucatán Peninsula. The tallest mountain in Mesoamerica is Pico de Orizaba, a dormant volcano located on the border of Puebla and Veracruz. Its peak elevation is 5,636 m (18,490 ft).

The Sierra Madre mountains, which consist of several smaller ranges, run from northern Mesoamerica south through Costa Rica. The chain is historically volcanic. In central and southern Mexico, a portion of the Sierra Madre chain is known as the Eje Volcánico Transversal, or the Trans-Mexican volcanic belt. There are 83 inactive and active volcanoes within the Sierra Madre range, including 11 in Mexico, 37 in Guatemala, 23 in El Salvador, 25 in Nicaragua, and 3 in northwestern Costa Rica. According to the Michigan Technological University, 16 of these are still active. The tallest active volcano is Popocatépetl at 5,452 m (17,887 ft). This volcano, which retains its Nahuatl name, is located 70 km (43 mi) southeast of Mexico City. Other volcanoes of note include Tacana on the Mexico–Guatemala border, Tajumulco and Santamaría in Guatemala, Izalco in El Salvador, Arenal in Costa Rica, Cerro Negro, along with Concepción and Maderas on Ometepe, which is an island formed by both volcanoes rising out of Lake Cocibolca in Nicaragua.