Question: In what period did Islamic armies conquer the country known for its Muslims and people who traded slaves into the Middle East?

full_context: Document 1: Central African Republic: During the 16th and 17th centuries slave traders began to raid the region as part of the expansion of the Saharan and Nile River slave routes. Their captives were slaved and shipped to the Mediterranean coast, Europe, Arabia, the Western Hemisphere, or to the slave ports and factories along the West and North Africa or South the Ubanqui and Congo rivers. In the mid 19th century, the Bobangi people became major slave traders and sold their captives to the Americas using the Ubangi river to reach the coast. During the 18th century Bandia-Nzakara peoples established the Bangassou Kingdom along the Ubangi River.
Document 2: Guinea-Bissau: Portuguese natives comprise a very small percentage of Guinea-Bissauans. After Guinea-Bissau gained independence, most of the Portuguese nationals left the country. The country has a tiny Chinese population. These include traders and merchants of mixed Portuguese and Chinese ancestry from Macau, a former Asian Portuguese colony.
Document 3: Middle Ages: Religious beliefs in the Eastern Empire and Persia were in flux during the late 6th and early 7th centuries. Judaism was an active proselytising faith, and at least one Arab political leader converted to it.[J] Christianity had active missions competing with the Persians' Zoroastrianism in seeking converts, especially among residents of the Arabian Peninsula. All these strands came together with the emergence of Islam in Arabia during the lifetime of Muhammad (d. 632). After his death, Islamic forces conquered much of the Eastern Empire and Persia, starting with Syria in 634–635 and reaching Egypt in 640–641, Persia between 637 and 642, North Africa in the later 7th century, and the Iberian Peninsula in 711. By 714, Islamic forces controlled much of the peninsula in a region they called Al-Andalus.
Document 4: Syria: Sunni Muslims make up between 69–74% of Syria's population and Sunni Arabs account for 59–60% of the population. Most Kurds (8.5%) and most Turkoman (3%) are Sunni and account for the difference between Sunnis and Sunni Arabs, while 13% of Syrians are Shia Muslims (particularly Alawite, Twelvers, and Ismailis but there are also Arabs, Kurds and Turkoman), 10% Christian (the majority are Antiochian Greek Orthodox, the rest are Syrian Orthodox, Greek Catholic and other Catholic Rites, Assyrian Church of the East, Armenian Orthodox, Protestants and other denominations), and 3% Druze. Druze number around 500,000, and concentrate mainly in the southern area of Jabal al-Druze.President Bashar al-Assad's family is Alawite and Alawites dominate the government of Syria and hold key military positions. In May 2013, SOHR stated that out of 94,000 killed during the Syrian Civil War, at least 41,000 were Alawites.Christians (2.5 million), a sizable number of whom are found among Syria's population of Palestinian refugees, are divided into several sects: Chalcedonian Antiochian Orthodox make up 45.7% of the Christian population; the Catholics (Melkite, Armenian Catholic, Syriac Catholic, Maronite, Chaldean Catholic and Latin) make up 16.2%; the Armenian Apostolic Church 10.9%, the Syriac Orthodox make up 22.4%; Assyrian Church of the East and several smaller Christian denominations account for the remainder. Many Christian monasteries also exist. Many Christian Syrians belong to a high socio-economic class.
Document 5: Middle Ages: Religious beliefs in the Eastern Empire and Iran were in flux during the late sixth and early seventh centuries. Judaism was an active proselytising faith, and at least one Arab political leader converted to it. Christianity had active missions competing with the Persians' Zoroastrianism in seeking converts, especially among residents of the Arabian Peninsula. All these strands came together with the emergence of Islam in Arabia during the lifetime of Muhammad (d. 632). After his death, Islamic forces conquered much of the Eastern Empire and Persia, starting with Syria in 634–635 and reaching Egypt in 640–641, Persia between 637 and 642, North Africa in the later seventh century, and the Iberian Peninsula in 711. By 714, Islamic forces controlled much of the peninsula in a region they called Al-Andalus.The Islamic conquests reached their peak in the mid-eighth century. The defeat of Muslim forces at the Battle of Tours in 732 led to the reconquest of southern France by the Franks, but the main reason for the halt of Islamic growth in Europe was the overthrow of the Umayyad Caliphate and its replacement by the Abbasid Caliphate. The Abbasids moved their capital to Baghdad and were more concerned with the Middle East than Europe, losing control of sections of the Muslim lands. Umayyad descendants took over the Iberian Peninsula, the Aghlabids controlled North Africa, and the Tulunids became rulers of Egypt. By the middle of the 8th century, new trading patterns were emerging in the Mediterranean; trade between the Franks and the Arabs replaced the old Roman economy. Franks traded timber, furs, swords and slaves in return for silks and other fabrics, spices, and precious metals from the Arabs.
Document 6: History of Iran: Iranian dynastic history was interrupted by the Arab conquest of Persia in 651 AD, establishing the even larger Islamic caliphate, and later by the Mongol invasion. The main religion of ancient Persia was the native Zoroastrianism, but after the seventh century, it was replaced by Islam.
Document 7: Syria: Syria (Arabic: سوريا ‎ Sūriyā), officially known as the Syrian Arab Republic (Arabic: الجمهورية العربية السورية ‎ al - Jumhūrīyah al - ʻArabīyah as - Sūrīyah) is a country in Western Asia, bordering Lebanon and the Mediterranean Sea to the west, Turkey to the north, Iraq to the east, Jordan to the south, and Israel to the southwest. Syria's capital and largest city is Damascus. A country of fertile plains, high mountains, and deserts, Syria is home to diverse ethnic and religious groups, including Syrian Arabs, Greeks, Armenians, Assyrians, Kurds, Circassians, Mandeans and Turks. Religious groups include Sunnis, Christians, Alawites, Druze, Isma'ilis, Mandeans, Shiites, Salafis, Yazidis, and Jews. Sunni make up the largest religious group in Syria.
Document 8: Middle Ages: Depopulation, deurbanisation, invasion, and movement of peoples, which had begun in Late Antiquity, continued in the Early Middle Ages. The barbarian invaders, including various Germanic peoples, formed new kingdoms in what remained of the Western Roman Empire. In the 7th century, North Africa and the Middle East—once part of the Eastern Roman Empire—came under the rule of the Caliphate, an Islamic empire, after conquest by Muhammad's successors. Although there were substantial changes in society and political structures, the break with Antiquity was not complete. The still-sizeable Byzantine Empire survived in the east and remained a major power. The empire's law code, the Code of Justinian, was rediscovered in Northern Italy in 1070 and became widely admired later in the Middle Ages. In the West, most kingdoms incorporated the few extant Roman institutions. Monasteries were founded as campaigns to Christianise pagan Europe continued. The Franks, under the Carolingian dynasty, briefly established the Carolingian Empire during the later 8th and early 9th century. It covered much of Western Europe, but later succumbed to the pressures of internal civil wars combined with external invasions—Vikings from the north, Magyars from the east, and Saracens from the south.
Document 9: Religion in Lebanon: Lebanon has several different main religions. The country has the most religiously diverse society of all states within the Middle East, comprising 18 recognized religious sects. The main two religions are Islam (Shia and Sunni) with 54% of followers and Christianity (the Maronite Church, the Greek Orthodox Church, the Melkite Greek Catholic Church, the Protestant Church, the Armenian Apostolic Church) with 40.4% of followers. There is also the Druze minority religion, which under the Lebanese political division (Parliament of Lebanon Seat Allocation) the Druze community is designated as one of the five Lebanese Muslim communities (Sunni, Shia, Druze, Alawi, and Ismaili).
Document 10: Guinea-Bissau: Guinea-Bissau was once part of the kingdom of Gabu, part of the Mali Empire; parts of this kingdom persisted until the 18th century. Other parts of the territory in the current country were considered by the Portuguese as part of their empire. Portuguese Guinea was known as the Slave Coast, as it was a major area for the exportation of African slaves by Europeans to the western hemisphere. Previously slaves had been traded by Arabs north to the northern part of Africa and into the Middle East.
Document 11: Religion in Syria: In Syria, Jews of both origins, numbering altogether fewer than 3,000 in 1987, are found. After a mass emigration in 1992, today fewer than 200 Jews live in Syria, mostly in the capital. Syrian Jews are Arabic-speaking and barely distinguishable from the Arabs around them. In Syria, as elsewhere, the degree to which Jews submit to the disciplines of their religion varies.
Document 12: Guinea-Bissau: Guinea-Bissau was once part of the kingdom of Gabu, as well as part of the Mali Empire. Parts of this kingdom persisted until the 18th century, while a few others were under some rule by the Portuguese Empire since the 16th century. In the 19th century, it was colonized as Portuguese Guinea. Upon independence, declared in 1973 and recognised in 1974, the name of its capital, Bissau, was added to the country's name to prevent confusion with Guinea (formerly French Guinea). Guinea-Bissau has a history of political instability since independence, and no elected president has successfully served a full five-year term.
Document 13: Islam in Spain: Islam was a widespread religion in what is now Spain and Portugal for nine centuries, beginning with the Umayyad conquest of Hispania and ending (at least overtly) with its prohibition by the modern Spanish state in the mid-16th century and the expulsion of the Moriscos in the early 17th century. Although a significant proportion of Moriscos returned to Spain or avoided expulsion through various means, and the decree never affected the country's large enslaved Muslim population, the indigenous practice of Islam had faded into obscurity by the 19th century.
Document 14: Guinea-Bissau: Guinea-Bissau is a member of the United Nations, African Union, Economic Community of West African States, Organisation of Islamic Cooperation, the Latin Union, Community of Portuguese Language Countries, La Francophonie and the South Atlantic Peace and Cooperation Zone.
Document 15: Religion in Kyrgyzstan: Islam is the most widely held faith. Official sources estimated that 87,6 percent of the population is Muslim. The CIA World Factbook estimates 85%. Almost all the Muslims are Sunni; there are few Shia in the country (approximately one thousand). There are also a few Ahmadiyya Muslims, though unrecognised by the country. According to SARA, as of May 2007 there were 1,650 mosques, of which 1,623 were registered. There also were seven institutes for higher Islamic teaching.
ground_truth: 634–635
sub_queries: Who traded slaves into the Middle East? Answer: Arabs
What country is known for its Arabs and Muslims? Answer: Syria
In what period did Islamic armies conquer Syria ? Answer: 634–635