In politics, a capital (also called capital city or political capital ¡ª although the latter phrase has an alternative meaning based on an alternative meaning of "capital") is the principal city or town associated with its government. It is almost always the city which physically encompasses the offices and meeting places of the seat of government and fixed by law. The word capital is derived from the Latin caput meaning "head," and the related term capitol refers to the building where government-business is chiefly conducted.

Seats of government in major substate jurisdictions are often called "capitals", but this is typically the case only in countries with some degree of federalism, where major substate jurisdictions have an element of sovereignty. In unitary states, "administrative center" or other similar terms are typically used. For example, the seat of government in a state of the United States of America is usually called its "capital", but the main city in a region of England is usually not. At lower administrative subdivisions, terms such as county town, county seat, or borough seat are usually used.

Historically, the major economic center of a state or region becomes the focal point of power, and becomes a capital through conquest or amalgamation. This was the case for London and Moscow. The capital naturally attracts the politically motivated and those whose skills are needed for efficient administration of government such as lawyers, journalists, and public policy researchers. A capitals that is the prime economic, cultural, or intellectual center is sometimes referred to as a primate city. Such is certainly the case with Paris and Buenos Aires among national capitals, and Irkutsk or Salt Lake City in their respective state or province.

Capitals are sometimes sited to discourage further growth in an existing major city. Bras¨ªlia was planted in Brazil's interior because the old capital, Rio de Janeiro, along with entire Southeastern Brazil, was considered already crowded. The government of South Korea announced in 2004 it would move its capital from Seoul to Yeongi-Gongju ¡ª even though the word Seoul itself means "capital" in the Korean language.

The convergence of political and economic or cultural power is by no means universal. Traditional capitals may be economically eclipsed by provincial rivals, as occurred with Nanjing by Shanghai, or Edinburgh by Glasgow. The decline of a dynasty or culture could mean the extinction of its capital city as well, as occurred with Babylon and Cahokia. And many modern capital cities, such as Abuja, Canberra and Ottawa, were deliberately fixed outside existing economic areas, and may not have established themselves as new commercial or industrial hubs since.

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. A sub-provincial . This article concerns places that serve as centers of government and politics. For alternative meanings see capital (disambiguation) . Encyclopedia of Modern Asia© on Xi¡¯an . Wade-Giles ( . A province, . The Chinese phrase Four Great Ancient Capitals of China (Traditional Chinese: ÖЇøËÄ´ó¹Å¶¼; Simplified Chinese: ÖйúËÄ´ó¹Å¶¼; pinyin: Zh¨­nggu¨® S¨¬ D¨¤ G¨³d¨±) traditionally refers to Beijing, Nanjing, Luoyang, and Xi¡¯an. . Zhou Dynasty . Early career . Western and Eastern Zhou . Xi??an West Peak (Xi Feng) . Qin Dynasty . Oppression During Zheng¡¯s Rule . Qin Shi Huang . Xianyang

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