Asia - Wikipedia
Country Profiles · Flags · World Geography · World Statistics · U.S. State Profiles · U.S. Cities · U.S. Geography · U.S. Statistics. Facts such as flags, maps, exports, natural resouces, people, languages. The continent of Asia is the world's largest and most populous continent with over 4. A political map of Asia and a satellite image from Landsat. The map is a portion of a larger world map created by the Central Intelligence Agency using.
Most ships of the Archaic Period were not ocean-going. They followed the shores closely, ready to put in at the first sign of trouble.
It is not surprising that the first continents were "shores," as they are in Herodotusfirst historian whose works are extant, who relies on earlier geography now missing except for fragments.
Asia is defined by two akrai, "bluffs" or "shores. The second runs from Phoenicia to the Red Sea the ancient Red Sea comprised also the Persian Gulf and the Indian Ocean and from there to India, after which "no man can say what sort of region it is.
Asia is equal to its shores, which also define Europe and Libya. The northern shore runs eastward along the line if the Phasis and Araxes Rivers ; that is, south of the Caucasus Mountainsand around the south of the Caspian Sea.
The southern shore continues the Red Sea and the Nile River, as Darius had constructed a canal between them. This division and system was already in place before Herodotus. He professes not to understand it: He says that an alternate northern border is the mouth of the Don River. The key is the coast-hugging requirement of most ancient navigation.
As the ancient navigator passed under the Rock of Gibraltar on his way into the Mediterranean Sea "our sea" to those who lived theretwo paths appeared to him, the north shore or the south shore. The canal extended the southern shore into the Red Sea. The symmetry of the scheme was too geometric for the Greeks to resist, as they represented all geographic masses by regular figures if they could.
A triangle prevailed in the Greek imagination with points at the Pillars, the Tanais and the Red Sea. As the sides were three shores, the continents were three. Further information on the etymology of Asia: Name of Asia Imperial Roman geography[ edit ] The geographer, Claudius Ptolemaeusdistinguishes between geography, which is "a representation in picture of the whole known world," and chorography "study of places"which "treats more fully the particulars.
A chorographer in Ptolemy's view was the expert in a specific locality, such as a ship captain, a merchant, or a native. Geographers consult them but they do not write geography unless they happen to be both.
Ptolemy was a geographer of the middle Roman Empire, an Egyptian.
The idea of the continents preceded the imperial Romans but through them reached to modern time to determine today's geographic views, which are enhancements and refinements of the classical. Stating that "continents are bounded more properly, when it is possible, by seas than by rivers," Ptolemy defines a three-continent system: In the north the border between Asia and Europe is a meridian through the mouth of the Don River northward "to the unknown region.
Asia Map and Satellite Image
Definition of continental plates is the realm of geologists. Strictly in terms of geological landmasses or tectonic plates, Europe is a western peninsula of Eurasia and of the Africa-Eurasia landmass. In the latter, Europe and Asia are parts of the Eurasian plate, which excludes the Arabian and Indian tectonic plates. Regional view[ edit ] In human geography, there are several schools of thought.
The more common school follows historical convention and treats Europe and Asia as different continents, categorizing East Asia, South Asia, and the Middle East as specific regions for more detailed analysis.Quick Revision of Map: Asia - World Geography for UPSC Prelims 2018
Other schools equate the word "continent" to geographical "region" when referring to Europe and Asia in terms of physical geography. Although New Guinea is mentioned occasionally in this article, it generally is not considered a part of Asia. Asia has the highest average elevation of the continents and contains the greatest relative relief. Those physiographic extremes and the overall predominance of mountain belts and plateaus are the result of the collision of tectonic plates.
In geologic terms, Asia comprises several very ancient continental platforms and other blocks of land that merged over the eons. Most of those units had coalesced as a continental landmass by about million years ago, when the core of the Indian subcontinent broke off from Africa and began drifting northeastward to collide with the southern flank of Asia about 50 million to 40 million years ago. The northeastward movement of the subcontinent continues at about 2.
The impact and pressure continue to raise the Plateau of Tibet and the Himalayas. The specific features of the coastline in some areas—especially in the east and southeast—are the result of active volcanism; thermal abrasion of permafrost caused by a combination of the action of breaking waves and thawingas in northeastern Siberia; and coral growth, as in the areas to the south and southeast. Accreting sandy beaches also occur in many areas, such as along the Bay of Bengal and the Gulf of Thailand.
Migration across those barriers has been possible only through mountain passes. A historical movement of population from the arid zones of Central Asia has followed the mountain passes into the Indian subcontinent. More recent migrations have originated in Chinawith destinations throughout Southeast Asia.
The Korean and Japanese peoples and, to a lesser extent, the Chinese have remained ethnically more homogeneous than the populations of other Asian countries.
There is a concentration of population in western Asia as well as great concentrations in the Indian subcontinent and the eastern half of China.
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There are also appreciable concentrations in the Pacific borderlands and on the islands, but vast areas of Central and North Asia—whose forbidding climates limit agricultural productivity—have remained sparsely populated. Of those, only Christianity developed primarily outside of Asia; it exerts little influence on the continent, though many Asian countries have Christian minorities.
Buddhism has had a greater impact outside its birthplace in India and is prevalent in various forms in China, South KoreaJapan, the Southeast Asian countries, and Sri Lanka. Islam has spread out of Arabia eastward to South and Southeast Asia.