Editing Khosrow I (section)

== Constructions ==
[[File:001125-TaqKasra-Iraq-IMG 7914-2.jpg|thumb|The ruins of the [[Taq-e Kasra]] today]]
Khosrow is known to have ordered many public works projects during his long reign, such  bridges, roads, dams and walls.{{sfn|Kia|2016|p=261}} To protect the frontiers of Iran, Khosrow had a sequence of walls built (and fortified) around his empire, much like the [[Great Wall of China]] and [[Hadrian's Wall]] in [[Northern England]].<ref name="Daryaee 2014 29">{{harvnb|Daryaee|2014|p=29}}; {{harvnb|Nicholson|Canepa|Daryaee|2018}}</ref> Instead of constructing it on one side of the empire, he had it on four.{{sfn|Daryaee|2014|p=29}} According to Middle Persian sources, Khosrow I ordered the construction of the [[Great Wall of Gorgan]], which extended from the eastern coast of the [[Caspian Sea]] to block incursions by nomadic tribes, such as the [[Hephthalites]].<ref name="Daryaee 2014 29"/> In the northwest, he had the [[Fortifications of Derbent|Derbent Wall]] further fortified to protect the area from incursions by [[Alans]], Turks, [[Sarir]]s, [[Khazars]], and other northern neighbours.<ref>{{harvnb|Nicholson|Canepa|Daryaee|2018}}; {{harvnb|Kia|2016|p=259}}; {{harvnb|Kettenhofen|1994}}; {{harvnb|Potts|2018}}</ref>

Another wall was constructed in the southwest, called the ''war-i tāzigān'' ("wall of the Arabs").{{sfn|Daryaee|2014|p=29}} He may have also built another wall in the northeast−the [[Wall of Tammisha]].{{sfn|Rekavandi|Sauer|2013}} Besides defense structures, Khosrow also had a large-scale canal system created in [[Asoristan]], known in Islamic sources as the [[Nahrawan Canal]].{{sfn|Morony|1993|pp=912–913}} Out of all his constructions, his most memorable and noteworthy achievement was the palace he had made at Ctesiphon, known as the [[Taq-e Kasra]].{{sfn|Kia|2016|p=261}} The palace, still standing to this day, albeit heavily ruined, portrays one of the empire's most remarkable architectural accomplishments.{{sfn|Nicholson|Canepa|Daryaee|2018}}

After the sack of Antioch in 540, Khosrow built a new city one ''[[parasang]]'' ({{convert|4–5|km|disp=or}}) south of Ctesiphon for the inhabitants he had captured.<ref>{{harvnb|Sauer|2017|pp=33–34}}; {{harvnb|Shahbazi|2005}}</ref> It was located on the eastern bank of the [[Tigris]], and was officially named ''[[Weh Antiok Khosrow|Weh-andīōg-husraw]]'' ("City Better than Antioch [has] Khosrow [built this]" or "Khosrow's Better Antioch").<ref>{{harvnb|Sauer|2017|pp=33–34}}; {{harvnb|Shahbazi|2005}}; {{harvnb|Canepa|2018}}</ref> The city reportedly had [[public bath]]s and a [[hippodrome]], and a street program modelled on Antioch.{{sfn|Sauer|2017|p=34}} The Christian population was granted freedom of religion and burial.{{sfn|Sauer|2017|p=34}} The city was known informally as Rumagan ("Town of the Greeks"), which later became ar-Rumiyya under the [[Caliphate]].{{sfn|Sauer|2017|p=34}} The remains of the city are most likely situated at the unexcavated place that is still known as Bustan Kisra ("Gardens of Khosrow").{{sfn|Sauer|2017|p=34}}
<gallery widths="200px" heights="200px">
File:Great Wall of Gorgan 20160522 05.jpg|Remains of the [[Great Wall of Gorgan]]
File:Gorgan-e-Difar.svg|Map illustrating the extent of the Great Wall of Gorgan
File:Дербентская цитадель. Дербент.jpg|Wall of the [[Fortifications of Derbent|Derbent citadel]]
File:Mauer von Derbend.jpg|Map of the Sasanian fortifications at Derbent, by [[Roderich von Erckert]]
</gallery>