| 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 |
|---|---|
| canal | The absence or presence of canal for a polity. |
| # | Polity | Year(s) | Canal | Description | Edit |
|---|---|---|---|---|---|
| 281 |
(Late Roman Republic) |
Full Year Range of Late Roman Republic is assumed. [-133, -31] |
present |
None | |
| 282 |
(Roman Empire - Principate) |
Full Year Range of Roman Empire - Principate is assumed. [-31, 284] |
present |
None | |
| 283 |
(Republic of St Peter I) |
Full Year Range of Republic of St Peter I is assumed. [711, 904] |
unknown |
None | |
| 284 |
(Republic of Venice III) |
Full Year Range of Republic of Venice III is assumed. [1204, 1563] |
present |
None | |
| 285 |
(Ottoman Empire IV) |
Full Year Range of Ottoman Empire IV is assumed. [1839, 1922] |
present |
Mesopotamian Irrigation Canal, actively maintained throughout the 19th century under Ottoman rule. Supported agriculture by distributing water from the Tigris and Euphrates rivers to surrounding farmland. [Husain_Husain 2021] | |
| 286 |
(Republic of Venice IV) |
Full Year Range of Republic of Venice IV is assumed. [1564, 1797] |
present |
None | |
| 288 |
(Middle Formative Basin of Mexico) |
Full Year Range of Middle Formative Basin of Mexico is assumed. [-800, -401] |
absent |
None | |
| 289 |
(Byzantine Empire II) |
Full Year Range of Byzantine Empire II is assumed. [867, 1072] |
present |
None | |
| 290 |
(Japan - Azuchi-Momoyama) |
Full Year Range of Japan - Azuchi-Momoyama is assumed. [1568, 1603] |
present |
None |