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The history of Earth is divided into four great eons, starting 4,540 mya with the formation of the planet. Each eon saw the most significant changes in Earth's composition, climate and life. Each eon is subsequently divided into eras, which in turn are divided into periods, which are further divided into epochs . Eon.
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History of Earth was a Natural sciences good articles...
- Geothermal Gradient
Heat sources Earth cutaway from core to exosphere Geothermal...
- Chronology of The Universe
The chronology of the universe describes the history and...
- Mass Extinctions
Declines in the numbers of terrestrial and aquatic genera at...
- Archean
The Archean Eon (IPA: / ɑːr ˈ k iː ə n / ar-KEE-ən, also...
- World map
A world map is a map of most or all of the surface of Earth....
- History of the United States
The history of the lands that became the United States began...
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Feb 1, 2024 · The origins of the United States of America can be traced back to the early 17th century when European settlers, primarily from England, began establishing colonies along the eastern seaboard of North America. Over the next century, the 13 American colonies developed distinct identities and economies, with tensions with Britain escalating ...
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The US has the 2nd largest Exclusive Economic Zone of 11,351,000 km 2 (4,383,000 sq mi). By total area ( water as well as land), the United States is either slightly larger or smaller than the People's Republic of China, making it the world's third or fourth-largest country.
- Ranked 3rd/4th
- Lake Superior, 58,000 km² (22,394 sq mi)
- Denali, 6,190.5 m (20,310 ft)
- Badwater Basin, −85 m (−279 ft)
A topographic map of the United States. The United States is the world's third-largest country by total area behind Russia and Canada. The 48 contiguous states and the District of Columbia occupy a combined area of 3,119,885 square miles (8,080,470 km 2).
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- None at the federal level
In 1715, after the Calvert family had renounced Catholicism and embraced Anglicanism, the colony reverted back to a proprietary form of government. United States - Colonization, Revolution, Constitution: When Columbus arrived, he found the New World inhabited by peoples who in all likelihood had originally come from the continent of Asia.
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