| Variable | Definition |
|---|---|
| Polity | The Seshat Polity ID |
| Year(s) | The years for which we have the data. [negative = BCE] |
| Tag | [Evidenced, Disputed, Suspected, Inferred, Unknown] |
| Verified | A Seshat Expert has approved this piece of data. |
| Variable | Definition |
|---|---|
| irrigation_system | The absence or presence of irrigation system for a polity. |
| # | Polity | Year(s) | Irrigation System | Description | Edit |
|---|---|---|---|---|---|
| 51 |
(Konya Plain - Early Bronze Age) |
Full Year Range of Konya Plain - Early Bronze Age is assumed. [-3000, -2000] |
uncoded |
unknown | |
| 52 |
(Konya Plain - Late Chalcolithic) |
Full Year Range of Konya Plain - Late Chalcolithic is assumed. [-5500, -3000] |
uncoded |
unknown | |
| 55 |
(Western Roman Empire - Late Antiquity) |
Full Year Range of Western Roman Empire - Late Antiquity is assumed. [395, 476] |
uncoded |
"Like the early irrigation ditches in Italy, the gold and silver mines received considerable attention when they first started producing, but after the second century they are seldom mentioned." [Morgan 2012] | |
| 56 |
(Bengal Sultanate) |
Full Year Range of Bengal Sultanate is assumed. [1338, 1538] |
present |
"But locally Khan Jahan [...] also built roads, mosques and tanks in Barobazar, a site northwest of Bagerhat in the Jhenaidah district, which some now identify with Mahmudabad of Sultanate times." [Hasan 2007, p. 16] | |
| 57 |
(Chandra Dynasty) |
Full Year Range of Chandra Dynasty is assumed. [900, 1050] |
present |
“In the delta, embanked fields irrigated by monsoon rainwater and worked by ploughs appeared at least 2,500 years ago.Since then this form of crop production has been expanding gradually across the lowlands at the expense of an older system of hoe cultivation on temporary plots.” [van_Schendel 2009] | |
| 58 |
(Macedonian Empire) |
Full Year Range of Macedonian Empire is assumed. [-330, -312] |
present |
Maintenance of Persian networks and expansion under the Greeks. [Tarn 2010, pp. 101-105] Also in Egypt. "Iranians were the inventors of qanats ... during the Archaemenid era there appeared an extensive system of underground networks known as qanats" [Angelakis_et_al 2012, p. 97] | |