Ancient Iran in the context of "Persians"

The Achaemenid Empire (/əˈkiːmənɪd/ ə-KEE-mə-nid; Old Persian: 𐎧𐏁𐏂, Xšāça, lit. 'The Empire' or 'The Kingdom') was an ancient Iranian empire founded by Cyrus the Great of the Achaemenid dynasty in 550 BC. At peak, its territorial extent was roughly 5.5 million square kilometres (2.1 million square miles), making it the largest empire of its time. Based in the Iranian plateau, it stretched from the Balkans and Egypt in the west to the Indus Valley in the east, including Anatolia, Cyprus, Mesopotamia, the Levant, parts of Eastern Arabia, and large parts of Central Asia.

By the 7th century BC, the region of Persis, located in the southwestern part of the Iranian plateau, had been settled by Persians. From Persis, Cyrus rose and defeated Media, Lydia, and the Neo-Babylonian Empire, thus marking the establishment of a new imperial polity in the ancient Near East. While its conquests were largely successful in most regions, the Achaemenid Empire's attempts to expand into Greece proved extremely difficult over the course of decades of wars and multiple kings, ultimately resulting in its defeat in the Greek mainland.

The ancient Near East was home to many cradles of civilization, spanning Mesopotamia, the Levant,, Egypt, Iran, Anatolia and the Armenian highlands, and the Arabian Peninsula. As such, the fields of ancient Near East studies and Near Eastern archaeology are one of the most prominent with regard to research in the realm of ancient history. Historically, the Near East denoted an area roughly encompassing the centre of West Asia, having been focused on the lands between Greece and Egypt in the west and Iran in the east. It therefore largely corresponds with the modern-day geopolitical concept of the Middle East.

The history of the ancient Near East begins with the rise of Sumer in the 4th millennium BC, though the date that it ends is a subject of debate among scholars; the term covers the region's developments in the Bronze Age and the Iron Age, and is variously considered to end with either the establishment of the Achaemenid Empire in the 6th century BC, the establishment of the Macedonian Empire in the 4th century BC, or the beginning of the early Muslim conquests in the 7th century AD.

The Sasanian Empire (/səˈsɑːniən/), officially Eranshahr (Middle Persian: 𐭠𐭩𐭥𐭠𐭭𐭱𐭲𐭥𐭩 Ērānšahr, "Empire of the Iranians"), was an Iranian empire that was founded and ruled by the House of Sasan from 224 to 651 AD. Lasting for over four centuries, the length of the Sasanian dynasty's reign over ancient Iran was second only to that of the Arsacid dynasty of Parthia which immediately preceded it.

Founded by Ardashir I, whose rise coincided with the decline of Arsacid influence in the face of both internal and external strife, the House of Sasan was highly determined to restore the legacy of the Achaemenid Empire by expanding and consolidating the dominions of the Iranian nation. Most notably, after defeating Artabanus IV of Parthia at the Battle of Hormozdgan in 224, it began competing far more zealously with the neighbouring Roman Empire than the Arsacids had, thus sparking a new phase of the Roman–Iranian Wars. These efforts by Sasanian rulers ultimately led to the re-establishment of Iran as a major power of late antiquity.

A qanāt (Persian: قَنَات) or kārīz (کَارِیز) is a water supply system that was developed in ancient Iran for the purpose of transporting usable water to the surface from an aquifer or a well through an underground aqueduct. Originating approximately 3,000 years ago, its function is essentially the same across the Middle East and North Africa, but it is known by a variety of regional names beyond today's Iran, including: kārēz in Afghanistan and Pakistan; foggāra in Algeria; khettāra in Algeria and Morocco; the daoudi-type falaj in Oman and the United Arab Emirates; and ʿuyūn in Saudi Arabia. In addition to those in Iran, the largest extant and functional qanats are located in Afghanistan, Xinjiang in China (the Turpan water system), Oman, and Pakistan.

Proving crucial to water supply in areas with hot and dry climates, a qanat enables water to be transported over long distances by largely eliminating the risk of much of it evaporating on the journey. The system also has the advantage of being fairly resistant to natural disasters, such as floods and earthquakes, as well as to man-made disasters, such as wartime destruction and water supply terrorism. Furthermore, it is almost insensitive to varying levels of precipitation, delivering a flow with only gradual variations from wet to dry years.

Balkh is a town in the Balkh Province of Afghanistan. It is located approximately 20 kilometres (12 mi) to the northwest of the provincial capital city Mazar-i-Sharif and approximately 74 kilometres (46 mi) to the south of the Amu Darya and the Afghanistan–Uzbekistan border. In 2021–2022, the National Statistics and Information Authority reported that the town had 138,594 residents. Listed as the eighth largest settlement in the country, unofficial 2024 estimates set its population at around 114,883 people.

Historically, the site of present-day Balkh was held in considerably high regard due to its religious and political significance in Ariana. A hub of Zoroastrianism and Buddhism, the ancient city was also known to the Persians as Zariaspa and to the Greeks as Bactra, giving its name to Bactria. As such, it was famously known as the capital of Bactria or Tokharistan. The Italian explorer and writer Marco Polo described Balkh as "a noble city and a great seat of learning" prior to the Mongol conquests. Most of the town now consists of ruined buildings, situated some 12 kilometres (7.5 mi) from the right bank of the seasonally flowing Balkh River, at an elevation of about 365 metres (1,198 ft).

The pre-Indo-European languages are any of several ancient languages, not necessarily related to one another, that existed in Prehistoric Europe, Asia Minor, Ancient Iran, and Southern Asia before the arrival of speakers of Indo-European languages. The oldest Indo-European language texts are Hittite and date from the 19th century BC in Kültepe (modern eastern Turkey), and while estimates vary widely, the spoken Indo-European languages are believed to have developed at the latest by the 3rd millennium BC (see Proto-Indo-European Urheimat hypotheses). Thus, the pre-Indo-European languages must have developed earlier than or, in some cases, alongside the Indo-European languages that ultimately displaced and replaced almost all of them.

A handful of the pre-Indo-European languages are still extant: in Europe, Basque retains a localised strength, with fewer than a million native speakers, whereas the Dravidian languages remain very widespread in the Indian subcontinent, with over 250 million native speakers (the four major languages being Telugu, Tamil, Kannada and Malayalam) and the Brahui that stretches into modern Iran. In the Caucasus, Northwest and Northeast Caucasian languages and Kartvelian languages are still intact, with the first having the least language security of the three pre-Indo-European Caucasian language groups. Some pre-Indo-European languages are attested only as linguistic substrates in Indo-European languages or in toponyms. In much of Western Asia (including Iran and Anatolia), the pre-Indo-European, Hurrian/Caucasian, Semitic languages, Dravidian and language isolates have survived to the present day, although Elamite has entirely disappeared.