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European discovery and colonization of the Americas. Between 1492 and 1504, the Italian navigator and explorer Christopher Columbus led four transatlantic maritime expeditions in the name of the Catholic Monarchs of Spain to the Caribbean and to Central and South America. These voyages led to the widespread knowledge of the New World.
Christopher Columbus (/ k ə ˈ l ʌ m b ə s /; between 25 August and 31 October 1451 – 20 May 1506) was an Italian explorer and navigator from the Republic of Genoa who completed four Spanish-based voyages across the Atlantic Ocean sponsored by the Catholic Monarchs, opening the way for the widespread European exploration and European ...
- Isabella I of Castile
- Seville Cathedral, Seville, Spain
- Bartholomew Columbus (brother)
- Francisco de Bobadilla
The ocean is the body of salt water that covers ~70.8% of the Earth. In English, the term ocean also refers to any of the large bodies of water into which the world ocean is conventionally divided. Distinct names are used to identify five different areas of the ocean: Pacific, Atlantic, Indian, Antarctic/Southern, and Arctic.
- 3.688 km (2 mi)
- 1,370,000,000 km³ (328,680,479 cu mi) (97.5% of Earth's water)
- 361,000,000 km² (139,382,879 sq mi) (71% of Earth's surface area)
- List of countries by length of coastline
On average, the ocean floor is about 3,790m but there are ocean trenches as deep as 10,910m. The ocean has many biological zones determined by availability of different abiotic factors. Neritic zones are nearshore areas, including the intertidal zone. Oceanic zones are offshore regions of the ocean.
Jun 8, 2023 · Our planet didn’t always have an ocean. Earth has been around for about 4.5 billion years, but there was no ocean in sight for the first billion or so. That’s in part because the planet was ...
As the early Earth cooled, the water vapor in the atmosphere condensed and fell as rain. By about 4 billion years ago, the first permanent accumulations of water were present on Earth, forming the oceans and other bodies of water. Water moves between these different reservoirs through the hydrological cycle. Water is evaporated from the oceans ...
As the early Earth cooled, the water vapor in the atmosphere condensed and fell as rain. By about 4 billion years ago, the first permanent accumulations of water were present on Earth, forming the oceans and other bodies of water. Water moves between these different reservoirs through the hydrological cycle. Water is evaporated from the oceans ...
