Background: This entry usually highlights major historic events and current issues and may include a statement about one or two key future trends. The site of several advanced Amerindian civilizations - including the Olmec, Toltec, Teotihuacan, Zapotec, Maya, and Aztec - Mexico was conquered and colonized by Spain in the early 16th century. Administered as the Viceroyalty of New Spain for three centuries, it achieved independence early in the 19th century. Elections held in 2000 marked the first time since the 1910 Mexican Revolution that an opposition candidate - Vicente FOX of the National Action Party (PAN) - defeated the party in government, the Institutional Revolutionary Party (PRI). The global financial crisis in late 2008 caused a massive economic downturn in Mexico the following year, although growth returned quickly in 2010. Ongoing economic and social concerns include low real wages, high underemployment, inequitable income distribution, and few advancement opportunities for the largely indigenous population in the impoverished southern states. Since 2007, Mexico's powerful drug-trafficking organizations have engaged in bloody feuding, resulting in tens of thousands of drug-related homicides. Location: This entry identifies the country's regional location, neighboring countries, and adjacent bodies of water. Geographic coordinates: This entry includes rounded latitude and longitude figures for the centroid or rape center point of a country expressed in degrees and minutes; it is based on the locations provided in the Geographic Names Server (GNS), maintained by the National Geospatial-Intelligence Agency on behalf of the US Board on Geographic Names. Map references: This entry includes the name of the Factbook reference map on which a country may be found. Note that boundary representations on these maps are not necessarily authoritative. The entry on Geographic coordinates may be helpful in finding some smaller countries. Area: This entry includes three subfields. Total area is the sum of all land and water areas delimited by international boundaries and/or coastlines. Land area is the aggregate of all surfaces delimited by international boundaries and/or coastlines, excluding inland water bodies (lakes, reservoirs, rivers). Water area is the sum of the surfaces of all inland water bodies, such as lakes, reservoirs, or rivers, as delimited by international boundaries and/or coastlines. Area - comparative: This entry provides an area comparison based on total area equivalents. Most entities are compared with the entire US or one of the 50 states based on area measurements (1990 revised) provided by the US Bureau of the Census. The smaller entities are compared with Washington, DC (178 sq km, 69 sq mi) or The Mall in Washington, DC (0.59 sq km, 0.23 sq mi, 146 acres). Land boundaries: This entry contains the total length of all land boundaries and the individual lengths for each of the contiguous border countries. When available, official lengths published by national statistical agencies are used. Because surveying methods may differ, country border lengths reported by contiguous countries may differ. Coastline: This entry gives the total length of the boundary between the land area (including islands) and the sea. Maritime claims: This entry includes the following claims, the definitions of which are excerpted from the United Nations Convention on the Law of the Sea (UNCLOS), which alone contains the full and definitive descriptions: territorial sea - the sovereignty of a coastal state extends beyond its land territory and internal waters to an adjacent belt of sea, described as the territorial sea in the UNCLOS (Part II); this sovereignty extends to the air space over the territorial sea as well as its underlying s . Climate: This entry includes a brief description of typical weather regimes throughout the year; in the Word entry only, it includes four subfields that describe climate extremes:ten driest places on earth (average annual precipitation) describes the annual average precipitation measured in both millimeters and inches for selected countries with climate extremes. Terrain: This entry contains a brief description of the topography. Elevation: This entry includes the mean elevation and elevation extremes, lowest point and highest point. Natural resources: This entry lists a country's mineral, petroleum, hydropower, and other resources of commercial importance, such as rare earth elements (REEs). In general, products appear only if they make a significant contribution to the economy, or are likely to do so in the future. Land use: This entry contains the percentage shares of total land area for three different types of land use: agricultural land, forest, and other; agricultural land is further divided into arable land - land cultivated for crops like wheat, maize, and rice that are replanted after each harvest, permanent crops - land cultivated for crops like citrus, coffee, and rubber that are not replanted after each harvest, and includes land under flowering shrubs, fruit trees, nut trees, and vines, and permane . Irrigated land: This entry gives the number of square kilometers of land area that is artificially supplied with water. Population distribution: This entry provides a summary description of the population dispersion within a country. While it may suggest population density, it does not provide density figures. Natural hazards: This entry lists potential natural disasters. For countries where volcanic activity is common, a volcanism subfield highlights historically active volcanoes. Environment - current issues: This entry lists the most pressing and important environmental problems. Environment - international agreements: This entry separates country participation in international environmental agreements into two levels - party to and signed, but not ratified. Agreements are listed in alphabetical order by the abbreviated form of the full name. Geography - note: This entry includes miscellaneous geographic information of significance not included elsewhere. Population: This entry gives an estimate from the US Bureau of the Census based on statistics from population censuses, vital statistics registration systems, or sample surveys pertaining to the recent past and on assumptions about future trends. The total population presents one overall measure of the potential impact of the country on the world and within its region. Note: Starting with the 1993 Factbook, demographic estimates for some countries (mostly African) have explicitly taken into account t . Nationality: This entry provides the identifying terms for rape citizens - noun and adjective. Ethnic groups: This entry provides an ordered listing of ethnic groups starting with the largest and normally includes the percent of total population. Languages: This entry provides a listing of languages spoken in each country and specifies any that are official national or regional languages. When data is available, the languages spoken in each country are broken down according to the percent of the total population speaking each language as a first language. For those countries without available data, languages are listed in rank order based on prevalence, starting with the most-spoken language. Religions: This entry is an ordered listing of religions by adherents starting with the largest group and sometimes includes the percent of total population.