South Arabia in the context of "Emirate of Asir"

Yemen, officially the Republic of Yemen, is a country in West Asia. Including the Socotra Archipelago, mainland Yemen is located in southern Arabia; bordering Saudi Arabia to the north, Oman to the northeast, the south-eastern part of the Arabian Sea to the east, the Gulf of Aden to the south, and the Red Sea to the west, sharing maritime borders with Djibouti, Eritrea, and Somalia across the Horn of Africa. Covering roughly 455,503 square kilometres (175,871 square miles), with a coastline of approximately 2,000 kilometres (1,200 miles), Yemen is the second largest country on the Arabian Peninsula. Sanaa is its constitutional capital and largest city. Yemen's estimated population is 34.7 million, mostly Arab Muslims. It is a member of the Arab League, the United Nations, the Non-Aligned Movement and the Organisation of Islamic Cooperation.

Owing to its geographic location, Yemen has been at the crossroads of many civilisations for over 7,000 years. The Sabaeans formed a thriving commercial kingdom that influenced parts of modern Ethiopia and Eritrea. In 275 CE, it was succeeded by the Himyarite Kingdom, which spanned much of Yemen's present-day territory and was heavily influenced by Judaism. Christianity arrived in the fourth century, followed by the rapid spread of Islam in the seventh century. From its conversion to Islam, Yemen became a center of Islamic learning, and Yemenite troops played a crucial role in early Islamic conquests. Much of Yemen's architecture survived until modern times. For centuries, it was a primary producer of coffee, exported through the port of Mocha. Various dynasties emerged between the 9th and 16th centuries. During the 19th century, the country was divided between the Ottoman and British empires. After World War I, the Kingdom of Yemen was established, which in 1962 became the Yemen Arab Republic (North Yemen) following a civil war. In 1967, the People's Democratic Republic of Yemen (South Yemen) gained its independence from the British Aden Protectorate, becoming the first and only communist state in the Middle East and the Arab world. In 1990, the two Yemeni states united to form the modern Republic of Yemen, with Ali Abdullah Saleh serving as the first president until his resignation in 2012 in the wake of the Arab Spring.

Sabaic, sometimes referred to as Sabaean, was a Sayhadic language that was spoken between c. 1000 BC and the 6th century AD by the Sabaeans. It was used as a written language by some other peoples of the ancient civilization of South Arabia, including the Ḥimyarites, Ḥashidites, Ṣirwāḥites, Humlanites, Ghaymānites, and Radmānites. Sabaic belongs to the South Arabian Semitic branch of the Afroasiatic language family. Sabaic is distinguished from the other members of the Sayhadic group by its use of h to mark the third person and as a causative prefix; all of the other languages use s₁ in those cases. Therefore, Sabaic is called an h-language and the others s-languages. Numerous other Sabaic inscriptions have also been found dating back to the Sabean colonization of Africa.

Sabaic is very similar to Arabic and the languages may have been mutually intelligible.

The Kingdom of Aksum, or the Aksumite Empire, was a kingdom in East Africa and South Arabia from classical antiquity to the Middle Ages, based in what is now northern Ethiopia and Eritrea, and spanning present-day Djibouti and Sudan. Emerging from the earlier Dʿmt civilization, the kingdom was founded in the first century. The city of Axum served as the kingdom's capital for many centuries until it relocated to Kubar in the ninth century due to declining trade connections and recurring invasions.

The Kingdom of Aksum was considered one of the four great powers of the third century by Mani, the one who started the Manichean movement, alongside Persia, Rome, and China. Aksum continued to expand under the reign of Gedara (c. 200–230), who was the first king to be involved in South Arabian affairs. His reign resulted in the control of much of western Yemen, such as the Tihama, Najran, al-Ma'afir, Zafar (until c. 230), and parts of Hashid territory around Hamir in the northern highlands until a joint Himyarite-Sabean alliance pushed them out. Aksum-Himyar conflicts persisted throughout the third century. During the reign of Endybis (270–310), Aksum began minting coins that have been excavated as far away as Caesarea and southern India.

The era of pre-Islamic Arabia encompasses human history in all parts of the Arabian Peninsula before the rise of Islam. During the prehistoric period, humans first migrate and settle into the peninsula. In the early first millennium BC, writing and recorded history are introduced into the Peninsula, along with the rise of the first kingdoms in the south. In the early seventh century, the pre-Islamic period quickly comes to a close, from the beginning of Muhammad's preachings of Islam, to his establishment of the first Islamic state in 622 in Medina, and the subsequent conquest and political unification of the peninsula shortly after Muhammad's death, in the 630s. Some strands of Islamic tradition interpret the pre-Islamic period as a barbaric, morally un-enlightened period known as the "Jahiliyyah" (Arabic: جَاهِلِيَّة), but historians have not adopted this convention.

Pre-Islamic Arabia's demographics included both nomadic and settled populations, the latter of which eventually developed into distinctive civilizations. Eastern Arabia was home to the region's earliest civilizations, such as Dilmun, which is attested as a prominent trade partner of Mesopotamia during the Bronze Age; and its later pre-Islamic history is marked by the reign of consecutive Iranian empires, including those of the Parthians and the Sasanians. From the early 1st millennium BCE onward, South Arabia became home to a number of kingdoms, such as Sheba and Ma'in; while part of North Arabia became home to the Nabataean Kingdom, which was conquered and annexed by the Roman Empire in 106, thereafter being known as Arabia Petraea and initiating the centuries-long Roman period in Arabia.

Arabia Petraea (lit. 'Rocky Arabia') was a Roman province from the 2nd century to the 7th century. It was established after the Roman Empire conquered the Nabataean Kingdom in 106 and existed until the Muslim conquest of the Levant in the 630s. Spanning much of the Sinai Peninsula and part of the Levant, it was bordered by Syria to the north, by Judaea (later Syria Palaestina) to the west, and by Egypt to the southwest. To the east and southeast of Arabia Petraea was non-Roman territory that the Romans knew as Arabia Deserta. These two regions, together with a third region in South Arabia that was called Arabia Felix, accounted for the Arabian Peninsula in Roman geography.

Annexed by Trajan (r. 98–117), Arabia Petraea was a key province along the Limes Arabicus, which delineated the Roman Empire's borders throughout the Arabian Desert. It was also the only province in the Near East that the Romans did not gain and subsequently lose during Trajan's reign, unlike Armenia, Assyria, and Mesopotamia. The province's capital city was initially Petra, as it had been under the Nabataeans, but Bosra later served in this capacity. Most of the province's land was a vast desert that was sparsely populated by nomadic Arab tribes, though there were several urban settlements closer to the Jordan River.

Salah ad-Din Yusuf ibn Ayyub (c. 1137 – 4 March 1193), commonly known as Saladin, was a Kurdish commander and political leader. He was the founder of the Ayyubid dynasty and the first sultan of both Egypt and Syria. An important figure of the Third Crusade, he spearheaded the Muslim military effort against the Crusader states in the Levant. At the height of his power, the Ayyubid realm spanned Egypt, Syria, Upper Mesopotamia, the Hejaz, Yemen, and Nubia.

Alongside his uncle Shirkuh, a Kurdish mercenary commander in service of the Zengid dynasty, Saladin was sent to Fatimid Egypt in 1164, on the orders of the Zengid ruler Nur ad-Din. With their original purpose being to help restore Shawar as the vizier to the teenage Fatimid caliph al-Adid, a power struggle ensued between Shirkuh and Shawar after the latter was reinstated. Saladin, meanwhile, climbed the ranks of the Fatimid government by virtue of his military successes against Crusader assaults and his personal closeness to al-Adid. After Shawar was assassinated and Shirkuh died in 1169, al-Adid appointed Saladin as vizier. During his tenure, Saladin, a Sunni Muslim, began to undermine the Fatimid establishment; following al-Adid's death in 1171, he abolished the Cairo-based Isma'ili Shia Muslim Fatimid Caliphate and realigned Egypt with the Baghdad-based Sunni Abbasid Caliphate.

The tribes of Arabia (Arabic: القبائل العربية) have inhabited the Arabian Peninsula for thousands of years and traditionally trace their ancestry to one of two forefathers: Adnan, whose descendants originate from West Arabia, North Arabia, East Arabia, and Central Arabia; or Qahtan, whose descendants originate from South Arabia. Further, it is held in the Abrahamic religions—particularly Islam—that the Arab people are descended from Abraham through his son Ishmael.

From the 7th century onward, concurrent with the spread of Islam, many of these tribes' members began migrating and settling in the various regions that were subdued during the early Muslim conquests, including the Levant, Mesopotamia, Egypt, Khuzestan, the Maghreb, and Sudan. This phenomenon triggered a process of Arabization that significantly influenced demographic shifts across most of West Asia and North Africa, culminating in the growth of the Arab population far beyond the Arabian Peninsula.

The Qedarites (Ancient North Arabian: 𐪄𐪕𐪇, romanized: qdr) were an ancient Arab tribal confederation centred in their capital Dumat al-Jandal in the present-day Saudi Arabian province of Al-Jawf. Attested from the 9th century BC, the Qedarites formed a powerful polity which expanded its territory throughout the 9th to 7th centuries BC to cover a large area in northern Arabia stretching from Transjordan in the west to the western borders of Babylonia in the east, before later consolidating into a kingdom that stretched from the eastern limits of the Nile Delta in the west till Transjordan in the east and covered much of southern Judea (then known as Idumea), the Negev and the Sinai Peninsula.

The Qedarites played an important role in the history of the Levant and North Arabia, where they enjoyed close relations with the nearby Canaanite and Aramaean states and became important participants in the trade of spices and aromatics imported into the Fertile Crescent and the Mediterranean world from South Arabia. Having engaged in both friendly ties and hostilities with the Mesopotamian powers such as the Neo-Assyrian and Neo-Babylonian empires, the Qedarites eventually became integrated within the structure of the Achaemenid Empire. Closely associated with the Nabataeans, who may have eventually assimilated the Qedarites at the end of the Hellenistic period.

Sheba, or Saba, was an ancient South Arabian kingdom that existed in Yemen before 275 BCE. It likely began to exist between c. 1000 BCE and c. 800 BCE. Its inhabitants were the Sabaeans, who, as a people, were indissociable from the kingdom itself for much of the 1st millennium BCE. Modern historians agree that the heartland of the Sabaean civilization was located in the region around Marib and Sirwah. In some periods, they expanded to much of modern Yemen and even parts of the Horn of Africa, particularly Eritrea and Ethiopia. The kingdom's native language was Sabaic, which was a variety of Old South Arabian.

Among South Arabians and Abyssinians, Sheba's name carried prestige, as it was widely considered to be the birthplace of South Arabian civilization as a whole. The first Sabaean kingdom lasted from the 8th century BCE to the 1st century BCE: this kingdom can be divided into the "mukarrib" period, where it reigned supreme over all of South Arabia; and the "kingly" period, a long period of decline to the neighbouring kingdoms of Ma'in, Hadhramaut, and Qataban, ultimately ending when a newer neighbour, Himyar, annexed them. Sheba was originally confined to the region of Marib (its capital city) and its surroundings. At its height, it encompassed much of the southwestern parts of the Arabian Peninsula before eventually declining to the regions of Marib. However, it re-emerged from the 1st to 3rd centuries CE. During this time, a secondary capital was founded at Sanaa, which is also the capital city of modern Yemen. Around 275 CE, the Sabaean civilization came to a permanent end in the aftermath of another Himyarite annexation.

Ma'in (Minaean: 𐩣𐩲𐩬; Arabic: معين, romanized: Maʿīn) was an ancient South Arabian kingdom in modern-day Yemen. It was located along the strip of desert called Ṣayhad by medieval Arab geographers, which is now known as Ramlat al-Sab'atayn. Wadd was the national god of Ma'in. The spoken language was Minaic. The kingdom appears in the historical record in the 8th century BCE, and transition from a city-state to kingdom in the last quarter of the 7th century BCE. The date of the end of Ma'in is heavily disputed, but the most popular hypothesis places its demise in the 1st century CE.

The Minaean people were one of four ancient Yemeni groups mentioned by Eratosthenes. The others were the Sabaeans, Ḥaḑramites and Qatabānians. Each of these had regional kingdoms in ancient Yemen, with the Minaeans in the north-west (in Wādī al-Jawf), the Sabaeans to the south-east of them, the Qatabānians to the south-east of the Sabaeans, and the Ḥaḑramites further east still.