The Americas are the landmasses of the Western Hemisphere, often called the New World in historical contexts. Geographically they comprise two principal continental blocks and an extensive collection of islands and archipelagos. The term has both geographic and cultural meanings: it refers to physical continents, the nations and peoples that live there, and to the shared histories that have linked those lands since the 15th century.
Geographic components
The Americas are usually divided into two continents: the American continents broadly understood as North America and South America. North America itself includes a number of subregions and island groups; South America is the southern continental mass with its own coastal islands. Many maps and descriptions also identify Central America as a distinct subregion that connects the two continents and contains multiple countries.
- North America — from the Arctic islands to the isthmus of Panama, containing large countries, varied climates, and major economic centers.
- South America — a continent of tropical rainforests, high mountain ranges, and significant mineral and agricultural resources.
- Associated islands and archipelagos spread across the Atlantic and Pacific, from the Caribbean to the subantarctic islands.
Names and distinctions
The label "the New World" appears in older literature and continues to be used in historical discussions; see New World for that context. The adjective "American" is applied in different ways: technically it can mean something or someone from any of the Americas, but in common international usage it is often used specifically for people or things from the United States. Other regional names such as Central America are used to describe specific subregions within the greater continental framework.
Human history and cultural importance
Indigenous peoples lived throughout the Americas for millennia before sustained contact with Europe. After 1492, colonial empires, migration, and the transatlantic exchange dramatically reshaped societies, languages, economies, and ecosystems. Today the Americas are home to hundreds of nations and territories, a wide range of languages, and diverse cultural traditions that reflect Indigenous, African, European, and immigrant influences.
Modern significance
The Americas play a vital role in global affairs: they contain some of the world’s largest economies, crucial agricultural regions, and centers of biodiversity. Political arrangements vary from federations to small island states, and debates about identity and terminology — for example who may be called "American" — continue in both everyday language and formal discourse.



