The Indus Valley civilization, one of the world's oldest, flourished during the 3rd and 2nd millennia B.C. and extended into northwestern India. Aryan tribes from the northwest infiltrated the Indian subcontinent about 1500 B.C.; their merger with the earlier Dravidian inhabitants created the classical Indian culture. The Maurya Empire of the 4th and 3rd centuries B.C. - which reached its zenith under ASHOKA - united much of South Asia. The Golden Age ushered in by the Gupta dynasty (4th to 6th centuries A.D.) saw a flowering of Indian science, art, and culture. Islam spread across the subcontinent over a period of 700 years. In the 10th and 11th centuries, Turks and Afghans invaded India and established the Delhi Sultanate. In the early 16th century, the Emperor BABUR established the Mughal Dynasty, which ruled India for more than three centuries. European explorers began establishing footholds in India during the 16th century.
India is a source, transit, and destination for illicit narcotics and precursor chemicals; drug abuse in India growing, facilitated by illicit narcotics and the availability of over-the-counter medicines; commonly abused substances in India include heroin, cannabis, and cocaine, with growing use of pharmaceutical drugs in recent years including tramadol, opioids, and MDMA (ecstasy) analogues; largest producer of generic drugs in the world which is also used to produce illicit synthetic drugs such as pharmaceutical opioids, methamphetamine, heroin, MDMA, and ketamine
coal, iron ore, helium, petroleum, natural gas, arsenic, bismuth, cobalt, cadmium, ferrosilicon, gallium, germanium, hafnium, indium, lithium, mercury, tantalum, tellurium, tin, titanium, tungsten, antimony, manganese, magnesium, molybdenum, selenium, strontium, vanadium, magnetite, aluminum, lead, zinc, rare earth elements, uranium, hydropower potential (world's largest), arable land
overwhelming majority of the population is found in the eastern half of the country; the west, with its vast mountainous and desert areas, remains sparsely populated; though ranked first in the world in total population, overall density is less than that of many other countries in Asia and Europe; high population density is found along the Yangtze and Yellow River valleys, the Xi Jiang River delta, the Sichuan Basin (around Chengdu), in and around Beijing, and the industrial area around Shenyang
note 1: world's fourth largest country (after Russia, Canada, and US) and largest country situated entirely in Asia; Mount Everest on the border with Nepal is the world's tallest peak above sea level
note 2: the largest cave chamber in the world is the Miao Room, in the Gebihe cave system at China's Ziyun Getu He Chuandong National Park, which encloses some 10.78 million cu m (380.7 million cu ft) of volume; the world's largest sinkhole is the Xiaoxhai Tiankeng sinkhole in Chongqing Municipality, which is 660 m deep, with a volume of 130 million cu m
note 3: China appears to have been the center of domestication for two of the world's leading cereal crops: millet in the north along the Yellow River and rice in the south along the lower or middle Yangtze River
air pollution (greenhouse gases, sulfur dioxide particulates) from reliance on coal produces acid rain; China is the world's largest single emitter of carbon dioxide from the burning of fossil fuels; water shortages, particularly in the north; water pollution from untreated wastes; coastal destruction due to land reclamation, industrial development, and aquaculture; deforestation and habitat destruction; poor land management leads to soil erosion, landslides, floods, droughts, dust storms, and desertification; trade in endangered species
$14,327,359,000,000 (2019 est.)
note: because China's exchange rate is determined by fiat rather than by market forces, the official exchange rate measure of GDP is not an accurate measure of China's output; GDP at the official exchange rate substantially understates the actual level of China's output vis-a-vis the rest of the world; in China's situation, GDP at purchasing power parity provides the best measure for comparing output across countries
general assessment: China has the largest Internet market in the world with almost all subscribers accessing Internet through mobile devices; market is driven through government-allied investment; fast-developing data center market; government aims to provide universal and affordable broadband coverage through market competition and private investment in state-controlled enterprises; 3G and LTE subscribers will migrate to 5G aiming for 2 million 5G base stations by the end of 2022; government strengthens IoT policies to boost economic growth; China is pushing development of smart cities beyond Beijing; Beijing residents carry virtual card integrating identity, social security, health, and education documents; government controls gateways to global Internet through censorship, surveillance, and shut-downs; major exporter of broadcasting equipment world-wide (2022)
domestic: nearly 13 per 100 fixed line and 122 per 100 mobile-cellular (2021)
international: country code - 86; landing points for the RJCN, EAC-C2C, TPE, APCN-2, APG, NCP, TEA, SeaMeWe-3, SJC2, Taiwan Strait Express-1, AAE-1, APCN-2, AAG, FEA, FLAG and TSE submarine cables providing connectivity to Asia, the Middle East, Europe, and the US; satellite earth stations - 7 (5 Intelsat - 4 Pacific Ocean and 1 Indian Ocean; 1 Intersputnik - Indian Ocean region; and 1 Inmarsat - Pacific and Indian Ocean regions) (2019)
the PLA has a mix of some older and an increasing amount of modern, largely domestically produced systems heavily influenced by technology derived from other countries; Russia has been the top supplier of foreign military equipment in recent years; China has one of the world's largest defense-industrial sectors and is capable of producing advanced weapons systems across all military domains (2023)
note: the PLA is in the midst of a decades-long modernization effort; in 2017, President XI set three developmental goals for the force - becoming a mechanized force with increased information and strategic capabilities by 2020, a fully modernized force by 2035, and a world-class military by mid-century
Nigeria is a major hub for transnational drug trafficking networks entrenched throughout the world and supplying cocaine to Asia and Europe, heroin to Europe and North America, and methamphetamine to South Africa, Southeast Asia, Australia, and New Zealand; also exporting massive quantities of opioids such as tramadol and captagon along with crack cocaine; a major source of precursor or essential chemicals used in the production of illicit narcotics
Britain's American colonies broke with the mother country in 1776 and were recognized as the new nation of the United States of America following the Treaty of Paris in 1783. During the 19th and 20th centuries, 37 new states were added to the original 13 as the nation expanded across the North American continent and acquired a number of overseas possessions. The two most traumatic experiences in the nation's history were the Civil War (1861-65), in which a northern Union of states defeated a secessionist Confederacy of 11 southern slave states, and the Great Depression of the 1930s, an economic downturn during which about a quarter of the labor force lost its jobs. Buoyed by victories in World Wars I and II and the end of the Cold War in 1991, the US remains the world's most powerful nation state. Since the end of World War II, the economy has achieved relatively steady growth, low unemployment and inflation, and rapid advances in technology.
highest point: Denali 6,190 m (Mount McKinley) (highest point in North America)
lowest point: Death Valley (lowest point in North America) -86 m
mean elevation: 760 m
note: Denali is one of the most striking features on the entire planet; at 20,310 feet, it is the crowning peak of the Alaska Range and the highest mountain on North America; it towers three and one-half vertical miles above its base, making it a mile taller from base to summit than Mt. Everest; Denali's base sits at about 2,000 feet above sea level and rises over three and one-half miles to its 20,310 foot summit; Everest begins on a 14,000-foot high plain, then summits at 29,028 feet.
note: the peak of Mauna Kea (4,207 m above sea level) on the island of Hawaii rises about 10,200 m above the Pacific Ocean floor; by this measurement, it is the world's tallest mountain - higher than Mount Everest (8,850 m), which is recognized as the tallest mountain above sea level
coal, copper, lead, molybdenum, phosphates, rare earth elements, uranium, bauxite, gold, iron, mercury, nickel, potash, silver, tungsten, zinc, petroleum, natural gas, timber, arable land;
note 1: the US has the world's largest coal reserves with 491 billion short tons accounting for 27% of the world's total
note 2: the US is reliant on foreign imports for 100% of its needs for the following strategic resources: Arsenic, Cesium, Fluorspar, Gallium, Graphite, Indium, Manganese, Niobium, Rare Earths, Rubidium, Scandium, Tantalum, Yttrium; see Appendix H: Strategic Materials for further details