Afghanistan, officially the Islamic Republic of Afghanistan, is a landlocked country located in South and Central Asia. Afghanistan is bordered by Pakistan in the south and east, Iran in the west, Turkmenistan, Uzbekistan, and Tajikistan in the north, and in the far northeast, China. Its territory covers 652,000 square kilometers (252,000 sq mi) and much of it is covered by the Hindu Kush mountain range, which experience very cold winters. The north consists of fertile plains, whilst the south-west consists of deserts where temperatures can get very hot in summers. Kabul serves as the capital and its largest city.
Human habitation in Afghanistan dates back to the Middle Paleolithic Era, and the country?s strategic location along the Silk Road connected it to the cultures of the Middle East and other parts of Asia. The land has historically been home to various peoples and has witnessed numerous military campaigns, including those by Alexander the Great, Mauryas, Muslim Arabs, Mongols, British, Soviets, and since 2001 by the United States with NATO-allied countries. It has been called ?unconquerable? and nicknamed the ?graveyard of empires?.
The political history of the modern state of Afghanistan began with the Hotak and Durrani dynasties in the 18th century. In the late 19th century, Afghanistan became a buffer state in the ?Great Game? between British India and the Russian Empire. Its border with British India, the Durand Line, was formed in 1893 but it is not recognized by the Afghan government and it has led to strained relations with Pakistan since the latter?s independence in 1947. Following the Third Anglo-Afghan War in 1919 the country was free of foreign influence, eventually becoming a monarchy under King Amanullah, until almost 50 years later when Zahir Shah was overthrown and a republic was established. In 1978, after a second coup Afghanistan first became a socialist state and then a Soviet Union protectorate. This evoked the Soviet?Afghan War in the 1980s against mujahideen rebels. By 1996 most of Afghanistan was captured by the Islamic fundamentalist group the Taliban, who ruled most of the country as a totalitarian regime for over five years. The Taliban were forcibly removed by the NATO-led coalition, and a new democratically-elected government political structure was formed.
The name Afghanistan is believed to be as old as the ethnonym Afghan, which is documented in the 10th-century geography book Hudud ul-?alam. The root name ?Afghan? was used historically in reference to a member of the ethnic Pashtuns, and the suffix ?-stan? means ?place of? in Persian. Therefore, Afghanistan translates to land of the Afghans or, more specifically in a historical sense, to land of the Pashtuns. However, the modern Constitution of Afghanistan states that ?the word Afghan shall apply to every citizen of Afghanistan.?
Excavations of prehistoric sites by Louis Dupree and others suggest that humans were living in what is now Afghanistan at least 50,000 years ago, and that farming communities in the area were among the earliest in the world. An important site of early historical activities, many believe that Afghanistan compares to Egypt in terms of the historical value of its archaeological sites.
The country sits at a unique nexus point where numerous civilizations have interacted and often fought. It has been home to various peoples through the ages, among them the ancient Iranian peoples who established the dominant role of Indo-Iranian languages in the region. At multiple points, the land has been incorporated within large regional empires, among them the Achaemenid Empire, the Macedonian Empire, the Indian Maurya Empire, and the Islamic Empire.
Many empires and kingdoms have also risen to power in Afghanistan, such as the Greco-Bactrians, Kushans, Hephthalites, Kabul Shahis, Saffarids, Samanids, Ghaznavids, Ghurids, Khaljis, Kartids, Timurids, Mughals, and finally the Hotak and Durrani dynasties that marked the political origins of the modern state.
Archaeological exploration done in the 20th century suggests that the geographical area of Afghanistan has been closely connected by culture and trade with its neighbors to the east, west, and north. Artifacts typical of the Paleolithic, Mesolithic, Neolithic, Bronze, and Iron ages have been found in Afghanistan. Urban civilization is believed to have begun as early as 3000 BCE, and the early city of Mundigak (near Kandahar in the south of the country) may have been a colony of the nearby Indus Valley Civilization. More recent findings established that the Indus Valley Civilization stretched up towards modern-day Afghanistan, making the ancient civilization today part of Pakistan, Afghanistan and India. In more detail, it extended from what today is northwest Pakistan to northwest India and northeast Afghanistan. An Indus Valley site has been found on the Oxus River at Shortugai in northern Afghanistan. There are several smaller IVC colonies to be found in Afghanistan as well.
After 2000 BCE, successive waves of semi-nomadic people from Central Asia began moving south into Afghanistan; among them were many Indo-European-speaking Indo-Iranians. These tribes later migrated further into South Asia, Western Asia, and toward Europe via the area north of the Caspian Sea. The region at the time was referred to as Ariana.
The religion Zoroastrianism is believed by some to have originated in what is now Afghanistan between 1800 and 800 BCE, as its founder Zoroaster is thought to have lived and died in Balkh. Ancient Eastern Iranian languages may have been spoken in the region around the time of the rise of Zoroastrianism. By the middle of the 6th century BCE, the Achaemenids overthrew the Medes and incorporated Arachosia, Aria, and Bactria within its eastern boundaries. An inscription on the tombstone of Darius I of Persia mentions the Kabul Valley in a list of the 29 countries that he had conquered.
Alexander the Great and his Macedonian forces arrived to Afghanistan in 330 BCE after defeating Darius III of Persia a year earlier in the Battle of Gaugamela. Following Alexander?s brief occupation, the successor state of the Seleucid Empire controlled the region until 305 BCE, when they gave much of it to the Maurya Empire as part of an alliance treaty. The Mauryans controlled the area south of the Hindu Kush until they were overthrown in about 185 BCE. Their decline began 60 years after Ashoka?s rule ended, leading to the Hellenistic reconquest by the Greco-Bactrians. Much of it soon broke away from them and became part of the Indo-Greek Kingdom. They were defeated and expelled by the Indo-Scythians in the late 2nd century BCE.
During the first century BCE, the Parthian Empire subjugated the region, but lost it to their Indo-Parthian vassals. In the mid-to-late first century CE the vast Kushan Empire, centered in Afghanistan, became great patrons of Buddhist culture, making Buddhism flourish throughout the region. The Kushans were overthrown by the Sassanids in the 3rd century CE, though the Indo-Sassanids continued to rule at least parts of the region. They were followed by the Kidarite who, in turn, were replaced by the Hephthalites. By the 6th century CE, the successors to the Kushans and Hepthalites established a small dynasty called Kabul Shahi. Much of the northeastern and southern areas of the country remained dominated by Buddhist culture.