Palaestina Salutaris in the context of "Region of Palestine"

The region of Palestine, also known as historic Palestine or land of Palestine, is a geographical area in West Asia. It includes the modern states of Israel and Palestine, and some definitions include parts of northwestern Jordan. Other names for the region include Canaan, the Promised Land, the Land of Israel, the Holy Land, and Judea.

The earliest written record referring to Palestine as a geographical region is in the Histories of Herodotus in the 5th century BCE, which calls the area Palaistine, referring to the territory previously held by Philistia, a state that existed in that area from the 12th to the 7th century BCE. The Roman Empire conquered the region in 63 BCE and appointed client kings to rule over it until Rome began directly ruling over the region and established a predominately-Jewish province named "Judaea" in 6 CE. The Roman Empire killed the vast majority of Jews in Judaea to suppress the Bar Kokhba revolt during 132-136 CE; shortly after the revolt, the Romans expelled and enslaved nearly all of the remaining Jews in the historical Judah region centered on Jerusalem, depopulating that area. Roman authorities renamed the province of Judaea to "Syria Palaestina" in c. 135 CE to punish Jews for the Bar Kokhba Revolt and permanently sever ties between Jews and the province. In 390, during the Byzantine period, the region was split into the provinces of Palaestina Prima, Palaestina Secunda, and Palaestina Tertia. Following the Muslim conquest of the Levant in the 630s, the military district of Jund Filastin was established. While Palestine's boundaries have changed throughout history, it has generally comprised the southern portion of the wider Syria or Levant region.

Byzantine Palestine or Palaestina refers to the geographic, political, and cultural landscape of Palestine (also known as Land of Israel or Holy Land) during the period of Byzantine rule (early 4th to mid-7th centuries CE), beginning with the consolidation of Constantine’s power in the early 4th century CE and lasting until the Arab-Muslim conquest in the 7th century CE. The term generally designates the territories reorganized into the provinces of Palaestina Prima, Secunda, and Tertia (or Salutaris) between the late 4th and 5th centuries (covering most of modern-day Israel and Palestine and parts of Jordan and Syria.

The title "Byzantine" is a modern and artificial term which has been called "imaginary". This division is not unique for Palestine and related to the historiographical line between Ancient history and the Middle Ages. The Byzantine period in Palestine was politically a direct continuation of Roman rule, which began with Pompey’s conquest in 63 BCE and, from 395 CE, persisted in the form of the Eastern Roman Empire. Culturally, it followed a historical continuum that began in 332 BCE with the conquest of Alexander the Great and the incorporation of the Levant into the Hellenistic world, later evolving into a Hellenistic–Roman–Byzantine sphere. The Byzantine period is most distinguished from earlier times by major religious and demographic changes. Christianity became the state religion and Palestine assumed a central place in the Christian world, while the Jewish, Samaritan and polytheistic populations, facing increasing restrictions, became a minorities. The Jewish community declined in influence relative to diaspora communities, with the Babylonian Jewish community emerging as the leading center of Judaism.

Jund Filasṭīn (Arabic: جُنْد فِلَسْطِيْن, "the military district of Palestine") was one of the military districts of the Umayyad and Abbasid province of Bilad al-Sham (Levant), organized soon after the Muslim conquest of the Levant in the 630s. Jund Filastin, which encompassed most of Palaestina Prima and Palaestina Tertia, included the newly established city of Ramla as its capital and eleven administrative districts (kura), each ruled from a central town.

The Battle of Mu'tah (Arabic: مَعْرَكَة مُؤْتَة, romanized: Maʿrakat Muʿtah, or Arabic: غَزْوَة مُؤْتَة Ghazwat Muʿtah) took place in September 629 (1 Jumada al-Awwal 8 AH), between the forces of Muhammad and the army of the Byzantine Empire and their Ghassanid vassals. It took place in the village of Mu'tah in Palaestina Salutaris at the east of the Jordan River and modern-day Karak.

In Islamic historical sources, the battle is usually described as the Muslims' attempt to take retribution against a Ghassanid chief for taking the life of an emissary. According to Byzantine sources, the Muslims planned to launch their attack on a feast day. The local Byzantine Vicarius learned of their plans and collected the garrisons of the fortresses. Seeing the great number of the enemy forces, the Muslims withdrew to the south where the fighting started at the village of Mu'tah and they were either routed or retired without exacting a penalty on the Ghassanid chief. According to Muslim sources, after three of their leaders were killed, the command was given to Khalid ibn al-Walid and he succeeded in saving the rest of the force.

The administration of Judaea as a province of Rome from 6 to 135 was carried out primarily by a series of Roman prefects, procurators, and legates pro praetore. The first of these administrators coincided or were intertwined with the ostensible rule by the Herodian tetrarchy. The Roman administrators were as follows:

"Hadrian stationed an extra legion in Judaea, renaming it Syria Palaestina." This was following the defeat of the Bar Kokhba Revolt in 135. The Syria-based legion, Legio III Gallica, took part in the quelling of the revolt from 132 to 136, and in the aftermath, the emperor Hadrian renamed the province of Judea and its extra legion Syria Palaestina. The province of Syria Palaestina was divided into Palaestina Prima and Palaestina Salutaris in about 357, and by 409 Palaestina Prima had been further split into a smaller Palaestina Prima and Palaestina Secunda, while Salutaris was named Tertia or Salutaris. Palæstina Prima or Palaestina I existed from the late 4th century until it was temporarily lost to the Sassanid Empire (Persian Empire) in 614, but re-conquered in 628 and finally until the Muslim conquest of the Levant in the 630s.