Mexico City

Mexico City (Spanish: Ciudad de México  audio  American Spanish: [sjuˈða(ð) ðe ˈméxiko]; abbreviated as "CDMX") is the capital of Mexico. Mexico City is the country's largest city as well as its most important political, cultural, educational and financial center.

As an "alpha" global city Mexico City is one of the most important financial centers in the Americas. It is located in the Valley of Mexico (Valle de México), a large valley in the high plateaus at the center of Mexico, at an altitude of 2,240 metres (7,350 ft). The city consists of sixteen municipalities (previously called boroughs).

The 2009 estimated population for the city proper was around 8.84 million people, with a land area of 1,485 square kilometres (573 sq mi). According to the most recent definition agreed upon by the federal and state governments, the Greater Mexico City population is 21.2 million people, making it the largest metropolitan area in the western hemisphere, the eleventh-largest agglomeration, and the largest Spanish-speaking city in the world.

Mexico

Coordinates: 23°N 102°W / 23°N 102°W / 23; -102

Mexico (ⁱ/ˈmɛksᵻkoʊ/; Spanish: México [ˈmexiko]), officially the United Mexican States (Spanish: Estados Unidos Mexicanos,  listen ), is a federal republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of Mexico. Covering almost two million square kilometres (over 760,000 sq mi), Mexico is the fifth largest country in the Americas by total area and the 13th largest independent nation in the world. With an estimated population of over 120 million, it is the eleventh most populous country and the most populous Spanish-speaking country in the world and the second most populous country in Latin America. Mexico is a federation comprising thirty-two states, including Mexico City, its capital and largest city, which is also a state.

City

A city is a large and permanent human settlement. Although there is no agreement on how a city is distinguished from a town in general English language meanings, many cities have a particular administrative, legal, or historical status based on local law.

Cities generally have complex systems for sanitation, utilities, land usage, housing, and transportation. The concentration of development greatly facilitates interaction between people and businesses, benefiting both parties in the process, but it also presents challenges to managing urban growth.

A big city or metropolis usually has associated suburbs and exurbs. Such cities are usually associated with metropolitan areas and urban areas, creating numerous business commuters traveling to urban centers for employment. Once a city expands far enough to reach another city, this region can be deemed a conurbation or megalopolis. In terms of population, the largest city proper is Shanghai, while the fastest-growing is Dubai.

Origins

There is not enough evidence to assert what conditions gave rise to the first cities. Some theorists have speculated on what they consider suitable pre-conditions and basic mechanisms that might have been important driving forces.

Enter Sandman

"Enter Sandman" is a song by American heavy metal band Metallica. It was released as the first single from their eponymous fifth album, Metallica in 1991. The music was written by Kirk Hammett, James Hetfield and Lars Ulrich. Vocalist and rhythm guitarist Hetfield wrote the lyrics, which deal with the concept of a child's nightmares.

The single achieved platinum certification for more than 1,000,000 copies shipped in the United States, spurring sales of over 30 million copies for Metallica and propelling Metallica to worldwide popularity. Acclaimed by critics, the song is featured in all of Metallica's live albums and DVDs released after 1991 and has been played live at award ceremonies and benefit concerts.

It is among Metallica's most-played songs, having been performed live by the band 1,133 times, behind only "For Whom the Bell Tolls" (1,278), "One" (1,297), "Seek & Destroy" (1,369), "Creeping Death" (1,389) and "Master of Puppets" (1,439)—all songs that were released before "Enter Sandman".