The Indus is a transboundary river of Asia and a trans-Himalayan river of South and Central Asia. The 3,180 km (1,980 mi) river rises in mountain springs northeast of Mount Kailash in Western Tibet, flows northwest through the disputed region of Kashmir, bends sharply to the left after the Nanga Parbat massif, and flows south-by-southwest through Pakistan, before emptying into the Arabian Sea near the port city of Karachi.
Bactria, or Bactriana, was an ancient Iranian civilization in Central Asia based in the area south of the Oxus River and north of the mountains of the Hindu Kush, an area within the north of modern Afghanistan. Bactria was strategically located south of Sogdia and the western part of the Pamir Mountains. The extensive mountain ranges acted as protective "walls" on three sides, with the Pamir on the north and the Hindu Kush on south forming a junction with the Karakoram range towards the east.
The Kushan Empire was a syncretic empire formed by the Yuezhi in the Bactrian territories in the early 1st century. It spread to encompass much of what is now Tajikistan, Uzbekistan, Afghanistan, Pakistan, Eastern Iran and Northern India, at least as far as Saketa and Sarnath, near Varanasi, where inscriptions have been found dating to the era of the Kushan emperor Kanishka the Great.
Zhang Qian was a Chinese diplomat, explorer, and politician who served as an imperial envoy to the world outside of China in the late 2nd century BC during the Western Han dynasty. He was one of the first official diplomats to bring back valuable information about Central Asia, including the Greco-Bactrian remains of the Macedonian Empire as well as the Parthian Empire, to the Han dynasty imperial court, then ruled by Emperor Wu of Han.
Hindūstān was a historical region, polity, and a name for India, historically used to refer to the northern Indian subcontinent later expanded to the entire subcontinent, used in the modern day to refer to the Republic of India. Being the Iranic cognate of the Indic word Sindhu, it originally referred to the land of lower Indus basin during the ancient era, but was later extended to refer to northern Indian subcontinent. It finally referred to the entire subcontinent since the early modern period. Since the Partition of India in 1947, Hindustan continues to be used to the present day as a historic name for the Republic of India.
Gandhara was an ancient Indo-Aryan civilization centred in present-day north-west Pakistan and north-east Afghanistan. The core of the region of Gandhara was the Peshawar and Swat valleys extending as far east as the Pothohar Plateau in Punjab, though the cultural influence of Greater Gandhara extended westwards into the Kabul valley in Afghanistan, and northwards up to the Karakoram range. The region was a central location for the spread of Buddhism to Central Asia and East Asia with many Chinese Buddhist pilgrims visiting the region.
The Republic of India has two principal official short names, each of which is historically significant: India and Bharat. A third name, Hindustan, is also used commonly when Indians speak among themselves. The usage of "Bhārat", "Hindustān", or "India" depends on the context and language of conversation.
The Indo-Greek Kingdom, also known as the Yavana Kingdom, was a Hellenistic-era Greek kingdom covering various parts of modern-day Afghanistan, Pakistan and northwestern India.
The Indo-Scythians were a group of nomadic people of Iranic Scythian origin who migrated from Central Asia southward into the northwestern Indian subcontinent: the present-day South Asian regions of Afghanistan, Pakistan, Eastern Iran and northern India. The migrations persisted from the middle of the second century BCE to the fourth century CE.
Mahāyāna Buddhism entered Han China via the Silk Road, beginning in the 1st or 2nd century CE. The first documented translation efforts by Buddhist monks in China were in the 2nd century CE via the Kushan Empire into the Chinese territory bordering the Tarim Basin under Kanishka. These contacts transmitted strands of Sarvastivadan and Tamrashatiya Buddhism throughout the Eastern world.
The History of the Indo-Greek Kingdom covers a period from the 2nd century BCE to the beginning of the 1st century CE in northern and northwestern Indian subcontinent. There were over 30 Indo-Greek kings, often in competition on different territories. Many of them are only known through their coins.
The history of Sindh refers to the history of the modern-day Pakistani province of Sindh, as well as neighboring regions that periodically came under its sway.
The Rigveda refers to a number of rivers located in the northwestern Indian subcontinent, from Gandhara to Kurukshetra.
Hindush was an administrative division of the Achaemenid Empire in modern-day Pakistan. According to the Greek historian Herodotus, it was the "easternmost province" governed by the Achaemenid dynasty. Established through the Persian conquest of the Indus Valley in the 6th century BCE, it is believed to have continued as a province for approximately two centuries, ending when it fell to the Macedonian Empire during the Indian campaign of Alexander the Great.
The Battle of Rasil was fought between the Rashidun Caliphate and the Rai kingdom ruled by Raja Rasil in early 644. It was the first encounter of the Rashidun Caliphate in the Indian subcontinent. The exact location of the battle is not known, but historians suggest it was fought on the western bank of the River Indus.
The Greco-Bactrian Kingdom was a Greek state of the Hellenistic period located in Central Asia. The kingdom was founded by the Seleucid satrap Diodotus I Soter in about 256 BC, and continued to dominate Central Asia until its fall around 120 BC.
Around 535 BCE, the Persian king Cyrus the Great initiated a protracted campaign to absorb parts of India into his nascent Achaemenid Empire. In this initial incursion, the Persian army annexed a large region to the west of the Indus River, consolidating the early eastern borders of their new realm. With a brief pause after Cyrus' death around 530 BCE, the campaign continued under Darius the Great, who began to re-conquer former provinces and further expand the Achaemenid Empire's political boundaries. Around 518 BCE, the Persian army pushed further into India to initiate a second period of conquest by annexing regions up to the Jhelum River in what is today known as Punjab. At peak, the Persians managed to take control of most of modern-day Pakistan and incorporate it into their territory.
In ancient Greek geography, the basin of the Indus River, now in northwestern India and Pakistan, was on the extreme eastern fringe of the known world.
Sindhu-Sauvīra was an ancient Indo-Aryan kingdom in the western region of the subcontinent whose existence is attested during the Iron Age in India. The inhabitants of Sindhu were called the Saindhavas, and the inhabitants of Sauvīra were called Sauvīrakas.
