''Arachosia'' is the Hellenized name of an ancient satrapy that existed in the eastern part of the Achaemenid, Seleucid, Parthian, Greco-Bactrian and Indo-Scythian empires.
Bactria and Arachosia, Sophyte's Satrapy, 315-305 BC, Drachm
Arachosia was named after a river that runs through it, known in ancient Greek as the Arachotos and today as the Arghandab River, a left bank tributary of the Helmand River, in modern day southern Afghanistan. In old Persian inscriptions, the region is referred to as ''harauvati''. This form is the ''etymological equivalent'' of Vedic Sanskrit Saraswati.
The Rigvedic name of Arghandab is believed to be Drishadvati. The Drishadvati river is a river hypothesized by Indolologists to identify the route of the Vedic river Saraswati and the state of Brahmavarta. The Hindu religious text Manusmriti describes Brahmavarta as the region between the rivers Saraswati and Drishadwati, the land of Brahaman. The name has been translated in various ways, including ''holy land'', ''sacred land'', ''abode of gods'' and ''the scene of creation''.
The Saraswati River, the Drishadvati was probably a tributary, orange and blue lines indicate ancient rivers, green dotted and blue lines indicate modern riversAccording to Manusmriti, the Brahmavarta, where the Rishis composed the Vedas and other Sanskrit texts of the Vedic religion, was at the confluence of the Saraswati and Drishadwati rivers during the Vedic period. Seal dated to Gupta period with inscription ''Brahm Varta'' was excavated from Purana Qila, Delhi.
Helmand-Arghandab basin terrain map
Helmand-Arghandab basin
The region is referred to in the Achaemenid era Elamite Persepolis fortification tablets. It appears in the Old Persian, Akkadian and Aramaic inscriptions too. Ptolemy also refers to a city named Arachotus and Hsuan Tsang refers to the name as Kaofu.
Tablet of Elamite script, 2600 BC
Following Alexander's conquest of the Achaemenids, the Macedonian appointed his generals as governors. Later the Seleucid empire traded it to the Mauryan Empire in 305 BC as part of an alliance. According to Arrian, Megasthenes lived in Arachosia and travelled to Patliputra, to the court of Chandragupta Maurya as an ambassador in the 3rd century BC.
Kandahar Billingular Rock Inscription by Ashoka
The empire changed to the Shunga dynasty in 185 BC, then to the Greco-Bactrian kingdom, thereafter to the Indo-Greek kingdom in the mid 2nd century BC, the Indo Scythians in the mid 1st century BC, the Indo -Parthians in the 1st century AD, the Kushans around 230 AD, the Kidarites in 420 AD, the Hephthalites in 460 AD and finally the Saffarids, then the Samanid Empire and the Turkish Ghaznavids in the early 11th century AD.
Mercator Map, 1578, Asiae- Tabula IX
Croatian trace their origin to the area of Arachosia too.
Indo-Scythian, AR hemi drachm, 110-100 BC, weight 0.65 gm, Obverse: Horse walking right, with head turned left, Reverse: Winged Nike holding wreath and palm, square border around
One Drachm, Sophyte's Satrapy, 315-305 BC, silver, weight 3.3 gm, Obverse: Head of Sophytes facing right, Reverse: Rooster facing right with kerykeion behind
City of Puskalavati, Arachosia, 201-101 BC, Bronze, weight 10.6 gm, Obverse: Elephant walking right, Reverse: Lion walking left with swastika above