Raqqa

Raqqa (Arabic: ٱلرَّقَّة, romanized: ar-Raqqah, also al-Raḳḳa,is a city in Syria on the North bank of the Euphrates River, about 160 kilometres (99 miles) east of Aleppo. It is located 40 kilometres (25 miles) east of the Tabqa Dam, Syria's largest dam. The Hellenistic, Roman, and Byzantine city and bishopric Callinicum (formerly a Latin and now a Maronite Catholic titular see) was the capital of the Abbasid Caliphate between 796 and 809, under the reign of Harun al-Rashid. It was also the capital of the Islamic State from 2014 to 2017. With a population of 531,952 based on the 2021 official census, Raqqa is the sixth largest city in Syria.

During the Syrian Civil War, the city was captured in 2013 by the Syrian opposition and then by the Islamic State. ISIS made the city its capital in 2014. As a result, the city was hit by airstrikes from the Syrian government, Russia, the United States, and several other countries. Most non-Sunni religious structures in the city were destroyed by ISIS, most notably the Shia Uwais al-Qarni Mosque, while others were converted into Sunni mosques. On 17 October 2017, following a lengthy battle that saw massive destruction to the city, the Syrian Democratic Forces (SDF) declared the liberation of Raqqa from the Islamic State to be complete.

The area of Raqqa has been inhabited since remote antiquity, as attested by the mounds (tells) of Tall Zaydan and Tall al-Bi'a, the latter being identified with the Babylonian city Tuttul.

The modern city traces its history to the Hellenistic period, with the foundation of the city of Nikephorion (Ancient Greek: Νικηφόριον, Latinized as Nicephorium). There are two versions regarding the establishment of the city. Pliny, in his Natural History, attributes its founding to Alexander the Great, citing the advantageous location as the rationale behind its establishment. Similarly, Isidore of Charax, in the Parthian Stations, also credits its foundation to Alexander. Conversely, Appian includes Nikephorion in a list of settlements he attributes to Seleucid King Seleucus I Nicator (reigned 301–281 BC). According to Tacitus, Nikephorion, alongside other cities like Anthemousias, was established by Macedonians and bore a Greek name.

The successor of Seleucus I, Seleucus II Callinicus (r. 246–225 BC), enlarged the city and renamed it after himself as Kallinikos (Καλλίνικος, Latinized as Callinicum).

According to Cassius Dio, during Crassus's preparations for his campaign against the Parthians in the mid-first century BCE, Nikephorion was among the Greek poleis that backed him.

In Roman times, it was part of the Roman province of Osrhoene but had declined by the fourth century. Rebuilt by Byzantine Emperor Leo I (r. 457–474 AD) in 466, it was named Leontopolis (in Greek Λεοντόπολις or "city of Leo") after him, but the name Kallinikos prevailed. The city played an important role in the Byzantine Empire's relations with Sassanid Persia and the wars fought between the two empires. By treaty, the city was recognized as one of the few official cross-border trading posts between the two empires, along with Nisibis and Artaxata.

The town was near the site of a battle in 531 between Romans and Sasanians, when the latter tried to invade the Roman territories, surprisingly via arid regions in Syria, to turn the tide of the Iberian War. The Persians won the battle, but the casualties on both sides were high. In 542, the city was destroyed by the Persian Emperor Khusrau I (r. 531–579), who razed its fortifications and deported its population to Persia, but it was subsequently rebuilt by Byzantine Emperor Justinian I (r. 527–565). In 580, during another war with Persia, the future Emperor Maurice scored a victory over the Persians near the city during his retreat from an abortive expedition to capture Ctesiphon.