Ottoman period
Expansion of the Ottoman Empire began in the area under Selim I (reigned 1512–20). He defeated the Mamlūks in 1516–17 and added Lebanon (as part of Mamlūk Syria and Egypt) to his empire. Between the 16th and 18th centuries, Ottoman Lebanon evolved a social and political system of its own. Ottoman Aleppo or Tripoli governed the north, Damascus the centre, and Sidon (after 1660) the south. Coastal Lebanon and Al-Biqāʿ valley were usually ruled more directly from Constantinople (modern-day Istanbul, Tur.), the Ottoman capital, while Mount Lebanon enjoyed semiautonomous status. The population took up its present position: the Shīʿites were driven out of the north but increased their strength in the south; many Druze moved from south Lebanon to Jebel Druze (Jabal al-Durūz) in southern Syria; Maronite peasants, increasing in numbers, moved south into districts mainly populated by Druze. Monasteries acquired more land and wealth. In all parts of the mountains there grew up families of notables who controlled the land and established a feudal relation with the cultivators; some were Christian, some Druze, who were politically dominant. From them arose the house of Maʿn, which established a princedom over the whole of Mount Lebanon and was accepted by Christians and Druze alike. Fakhr al-Dīn II ruled most of Lebanon from 1593 to 1633 and encouraged commerce. When the house of Maʿn died out in 1697, the notables elected as prince a member of the Shihāb family, who were Sunni Muslims but with Druze followers, and this family ruled until 1842. Throughout this period European influence was growing. European trading colonies were established in Saïda and other coastal towns, mainly to trade in silk, the major Lebanese export from the 17th to the 20th century. French political influence was great, particularly among the Maronites, who formally united with the Roman Catholic Church in 1736.
The 19th century was marked by economic growth, social change, and political crisis. The growing Christian population moved southward and into the towns, and toward the end of the century many of these Christians emigrated to North America, South America, and Egypt. French Catholic and American Protestant mission schools, as well as schools of the local communities, multiplied; in 1866 the American mission established the Syrian Protestant College (now the American University of Beirut), and in 1875 the Jesuits started the Université Saint-Joseph. Such schools produced a literate class, particularly among the Christians, that found employment as professionals. Beirut became a great international port, and its merchant houses established connections with Egypt, the Mediterranean countries, and England.
The growth of the Christian communities upset the traditional balance of Lebanon. The Shihāb princes inclined more and more toward them, and part of the family indeed became Maronites. The greatest of them, Bashīr II (reigned 1788–1840), after establishing his power with the help of Druze notables, tried to weaken them. When the Egyptian troops of Ibrāhīm Pasha occupied Lebanon and Syria in 1831, Bashīr formed an alliance with him to limit the power of the ruling families and to preserve his own power. But Egyptian rule was ended by Anglo-Ottoman intervention, aided by a popular rising in 1840, and Bashīr was deposed. With him the princedom virtually ended; his weak successor was deposed by the Ottomans in 1842, and from that time relations grew worse between the Maronites, led by their patriarch, and the Druze, trying to retain their traditional supremacy. The French supported the Maronites and the British supported a section of the Druze, while the Ottoman government encouraged the collapse of the traditional structure, which would enable it to impose its own direct authority. The conflict culminated in the massacre of Maronites by the Druze in 1860. The complacent attitude of the Ottoman authorities led to direct French intervention on behalf of the Christians. The powers jointly imposed the Organic Regulation of 1861 (modified in 1864), which gave Mount Lebanon, the axial mountain region, autonomy under a Christian governor appointed by the Ottoman sultan, assisted by a council representing the various communities. Mount Lebanon prospered under this regime until World War I (1914–18), when the Ottoman government placed it under strict control, similar to that already established for the coast and Al-Biqāʿ valley.