Temple of Kukulcán (El Castillo) in the Maya city of Chichen Itza Artistic depiction of Mexico-Tenochtitlan, the Aztec capital and largest city in the Americas at the time. The city was completely destroyed in the 1521 siege of Tenochtitlan and rebuilt as Mexico City. The earliest human artifacts in Mexico are chips of stone tools found near campfire remains in the Valley of Mexico and radiocarbon-dated to circa 10,000 years ago.[32] Mexico is the site of the domestication of maize, tomato, and beans, which produced an agricultural surplus. This enabled the transition from paleo-Indian hunter-gatherers to sedentary agricultural villages beginning around 5000 BC.[33] The formative period of Mesoamerica is considered one of the six independent cradles of civilization, this era saw the origin of distinct cultural traits such as religious and symbolic traditions, maize cultivation, artistic and architectural complexes as well as a vigesimal (base 20) numeric system[34] that spread from the Mexican cultures to the rest of the Mesoamerican cultural area. In this period, villages became more dense in terms of population, becoming socially stratified with an artisan class, and developing into chiefdoms. The most powerful rulers had religious and political power, organizing the construction of large ceremonial centers.[35] The earliest complex civilization in Mexico was the Olmec culture, which flourished on the Gulf Coast from around 1500 BC. Olmec cultural traits diffused through Mexico into other formative-era cultures in Chiapas, Oaxaca, and the Valley of Mexico.[36] In the subsequent pre-classical period, the Maya and Zapotec civilizations developed complex centers at Calakmul and Monte Albán, respectively. During this period the first true Mesoamerican writing systems were developed in the Epi-Olmec and Zapotec cultures. The Mesoamerican writing tradition reached its height in the Classic Maya Hieroglyphic script, the earliest written histories date from this era. The tradition of writing was important after the Spanish conquest in 1521, with indigenous scribes learning to write their languages in alphabetic letters, while also continuing to create pictorial texts.[37][38] In Central Mexico, the height of the classic period saw the ascendancy of Teotihuacán, which formed a military and commercial empire. Teotihuacan, with a population of more than 150,000 people, had some of the largest pyramidal structures in the pre-Columbian Americas.[39] After the collapse of Teotihuacán around 600 AD, competition ensued between several important political centers in central Mexico such as Xochicalco and Cholula. At this time, during the Epi-Classic, Nahua peoples 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 era (ca. 1000–1519 AD), Central Mexico was dominated by the Toltec culture, Oaxaca by the Mixtec, and the lowland Maya area had important centers at Chichén Itzá and Mayapán. Toward the end of the post-Classic period, the Aztecs (or Mexica) established dominance, establishing a political and economic empire based in the city of Tenochtitlan (modern Mexico City), extending from central Mexico to the border with Guatemala.[40] Spanish conquest and colonial era (1519–1821) Main articles: Spanish conquest of Mexico and New Spain Storming of the Teocalli by Cortez and his Troops (painted in 1848) Although the Spanish Empire had established colonies in the Caribbean starting in 1493 the Spanish first learned of Mexico during the Juan de Grijalva expedition of 1518. The Spanish conquest of the Aztec Empire began in February 1519 when Hernán Cortés founded the Spanish city of Veracruz. The 1521 capture of Tenochtitlan and posterior founding of the Spanish capital Mexico City on its ruins was the beginning of a 300-year-long colonial era during which Mexico was known as Nueva España (New Spain). Two factors made Mexico a jewel in the Spanish Empire: the existence of large, hierarchically organized Mesoamerican populations that rendered tribute and performed obligatory labor and the discovery of vast silver deposits in northern Mexico.[41] Guanajuato was one of the richest and most opulent cities in New Spain The Kingdom of New Spain was created from the remnants of the Aztec empire. The two pillars of Spanish rule were the State and the Roman Catholic Church, both under the authority of the Spanish crown. In 1493 the pope had granted sweeping powers to the Spanish monarchy for its overseas empire, with the proviso that the crown spread Christianity in its new realms. In 1524, King Charles I created the Council of the Indies based in Spain to oversee State power in its overseas territories; in New Spain the crown established a high court in Mexico City, the Real Audiencia ('royal audience' or 'royal tribunal'), and then in 1535 created the Viceroyalty of New Spain. The viceroy was the highest official of the State. In the religious sphere, the Diocese of Mexico was created in 1530 and elevated to the Archdiocese of Mexico in 1546, with the archbishop as the head of the ecclesiastical hierarchy. Castilian Spanish was the language of rulers. The Catholic faith was the only one permitted, with non-Catholics and Catholics (excluding Indians) holding unorthodox views being subject to the Mexican Inquisition, established in 1571.[42] Spanish military forces, sometimes accompanied by native allies, led expeditions to conquer territory or quell rebellions through the colonial era. Notable Amerindian revolts in sporadically populated northern New Spain include the Chichimeca War (1576–1606),[43] Tepehuán Revolt (1616–1620),[44] and the Pueblo Revolt (1680), the Tzeltal Rebellion of 1712 was a regional Maya revolt.[45] Most rebellions were small-scale and local, posing no major threat to the ruling elites.[46] To protect Mexico from the attacks of English, French, and Dutch pirates and protect the Crown's monopoly of revenue, only two ports were open to foreign trade—Veracruz on the Atlantic (connecting to Spain) and Acapulco on the Pacific (connecting to the Philippines). Among the best-known pirate attacks are the 1663 Sack of Campeche[47] and 1683 Attack on Veracruz.[48] Of greater concern to the crown was the issue of foreign invasion, especially after Britain seized in 1762 the Spanish ports of Havana and Manila in the Seven Years' War. It created a standing military, increased coastal fortifications, and expanded the northern presidios and missions into Alta California. The volatility of the urban poor in Mexico City was evident in the 1692 riot in the Zócalo. The riot over the price of maize escalated to a full-scale attack on the seats of power, with the viceregal palace and the archbishop's residence attacked by the mob.[49] Independence era (1808–1855) Main articles: Mexican War of Independence, First Mexican Empire, First Mexican Republic, Centralist Republic of Mexico, and Mexican–American War Miguel Hidalgo y Costilla's Cry of Dolores on 16 September 1810, by J.J. del Moral. The call to arms marks the beginning of Mexico's War of Independence against Spanish colonial rule. On 16 September 1810, secular priest Miguel Hidalgo y Costilla declared against "bad government" in the small town of Dolores, Guanajuato. This event, known as the Cry of Dolores (