A well-known global city, Miami is a major center and leader in finance, commerce, culture, media, fashion, education, film, print media, entertainment, the arts and international trade. Known as The Gateway to the Americas, Miami is a major international center and leader in entertainment, education, media, music, fashion, film, culture, print media, and the performing arts.

Downtown Miami, South Florida's downtown, is home to the largest concentration of international banks in the United States, and is home to many large companies both nationally and internationally.

For well more than two decades, the Port of Miami, known as the "Cruise Capital of the World" and "Cargo Gateway of the Americas," is the number one cruise passenger port in the world accommodating the largest cruise ships in the world and operations and is the busiest in both passenger traffic and cruise lines.cruiselines.htm Cruise lines departing from the Port of Miami

In 2008, Miami was ranked as "America's Cleanest City" according to Forbes Magazine for its year-round good air quality, vast green spaces, clean drinking water, clean streets and city-wide recycling programs. In a 2009, UBS study of 73 world cities, Miami was ranked as the richest city in the United States (of four U. S. cities included in the survey) and the world's fifth-richest city, in terms of purchasing power.

The Miami area was first inhabited for more than one thousand years by the Tequestas, but was later claimed for Spain in 1566 by Pedro Menéndez de Avilés. A Spanish mission was constructed one year later in 1567. In 1836, Fort Dallas was built, and the Miami area subsequently became a site of fighting during the Second Seminole War.

Miami holds the distinction of being "the only major city in the United States conceived by a woman, Julia Tuttle," who was a local citrus grower and a wealthy Cleveland native. The Miami area was better known as "Biscayne Bay Country" in the early years of its growth. Some published reports described the area as a promising wilderness. The area was also characterized as "one of the finest building sites in Florida." The Great Freeze of 1894–1895 hastened Miami's growth, as the crops of the Miami area were the only ones in Florida that survived. Julia Tuttle subsequently convinced Henry Flagler, a railroad tycoon, to expand his Florida East Coast Railroad to the region, for which she became known as "the mother of Miami." Miami was officially incorporated as a city on July 28, 1896 with a population of just over 300.

Miami prospered during the 1920s with an increase in population and infrastructure but weakened after the collapse of the Florida land boom of the 1920s, the 1926 Miami Hurricane and the Great Depression in the 1930s. When World War II began, Miami, well-situated due to its location on the southern coast of Florida, played an important role in the battle against German submarines. The war helped to expand Miami's population; by 1940, 172,172 people lived in the city. After Fidel Castro rose to power in 1959, many Cubans sought refuge in Miami, further increasing the population. In the 1980s and 1990s, various crises struck South Florida, among them the Arthur McDuffie beating and the subsequent riot, drug wars, Hurricane Andrew, and the Elián González uproar. Nevertheless, in the latter half of the 20th century, Miami became a major international, financial, and cultural center.

Miami and its metropolitan area grew from just over one thousand residents to nearly five and a half million residents in just 110 years (1896–2006). The city's nickname, The Magic City, comes from this rapid growth. Winter visitors remarked that the city grew so much from one year to the next that it was like magic.

Miami is one of the country's most important financial centers. It is a major center of commerce, finances, corporate headquarters, and boasts a strong international business community. According to the ranking of world cities undertaken by the Globalization and World Cities Study Group & Network (GaWC) and based on the level of presence of global corporate service organizations, Miami is considered a "beta world city".

Several large companies are headquartered in or around Miami, including but not limited to: Alienware, Arquitectonica, Arrow Air, Bacardi, Benihana, Brightstar Corporation, Burger King, Celebrity Cruises, Carnival Corporation, Carnival Cruise Lines, CompUSA, Crispin Porter + Bogusky, Espírito Santo Financial Group, Fizber.com, Greenberg Traurig, Inktel Direct, Interval International, Lennar, Norwegian Cruise Lines, Perry Ellis International, RCTV International, Royal Caribbean Cruise Lines, Ryder Systems, Seabourn Cruise Line, Telefónica USA, TeleFutura, Telemundo, Univision, U.S. Century Bank, and World Fuel Services. Because of its proximity to Latin America, Miami serves as the headquarters of Latin American operations for more than 1400 multinational corporations, including AIG, American Airlines, Cisco, Disney, Exxon, FedEx, Kraft Foods, Microsoft, Yahoo, Oracle, SBC Communications, Sony, Visa International, and Wal-Mart.