The modern town was formerly known as "as-Sijn", and a site called "al-Mazraa", which means "the farm" in Arabic, was situated nearby to the southeast. A stone with an inscription dating from 179/80 CE. has been found in the town. Although the inscription dates from the Roman era in Syria, there is no other indication that the immediate region surrounding as-Sijn was part of the Roman province of Arabia Petraea at the time, and historian Glen Bowersock suggests the inscription was on "a wandering stone which had made its way to Sijn from some other place that was actually within the province of Arabia". In 1596 the village appeared under the name of "Sijni" in the Ottomantax registers as part of the nahiya of Bani Nasiyya in the qadaa of Hauran. It had an all Muslim population, consisting of thirty-nine households and eleven bachelors. They paid a fixed tax-rate of 20% on agricultural products, including wheat, barley, summer crops, goats and beehives, in addition to occasional revenues; the taxes totalled 5,500 akçe. In the mid-19th-century, al-Mazraa was described by Irish missionary Josias Leslie Porter as a "small ruined village... beside which there is a large fountain." It was inhabited by Ghawr Arabs who encamped at the site. Porter described as-Sijn as "a small Druze village situated on a low hill, contains some old houses of great solidity." In 1838, as-Sijn was noted by American scholars and missionaries Eli Smith and Edward Robinson as a mixed Muslim and Melkite village while al-Mazraa was a khirba. At some point in the middle to late 19th century, Druze peasants from Jabal Hauran captured as-Sijn and other Muslim-majority villages in the Hauran plain and drove out their inhabitants. During the Druze revolt against the Ottomans to protest conscription into the Ottoman army, Ottoman general Mustafa Pasha led his army to as-Sijn where he faced the forces of Ismail al-Atrash, the Druze chieftain. Although Atrash's men inflicted heavy casualties on Mustafa Pasha's army, the Ottomans eventually captured the town after receiving reinforcements. Consequently, in October 1862 al-Atrash negotiated an agreement with the Ottoman authorities, whereby al-Atrash would collect taxes from the Druze and Bedouins of the Hauran on behalf of the authorities in return for Druze exemption from conscription. In 1879, armed confrontations between the Muslims of Busra al-Harir and the Druze of Jabal Hauran was used an opportunity by the Muslims of the Hauran plain to press the Ottoman authorities to force the Druze withdrawal from sixteen formerly Muslim villages in the plain. The authorities accepted the request and consequently, a peace arrangement was made between the local Muslims and Druze, whereby the latter would withdraw from the plain villages. However, the Druze ultimately did not withdraw from ten of the plain villages, among which was as-Sijn. By 1888, a large Ottoman garrison was established in al-Mazraa in a bid to keep the frequently rebelling Druze clans in check and force their total submission to the government.
Modern era
As-Sijn was destroyed by Ottoman forces under the command of Sami Faruqi Pasha during the 1910 Druze revolt. The Ottomans were driven out of Syria by Arab and British forces in 1918, during World War I. Sometime after its destruction in 1910, the village was restored and in 1919 it had an estimated population of 800 Druze, 100 Christians and 20 Muslims. Al-Mazraa near as-Sijn was the site of the Battle of al-Mazraa during the Great Syrian Revolt against the French occupation. The French forces, under the leadership of General Roger Michaud, consisted of five battalions of infantry, three squadrons of cavalry, in addition to armored cars and artillery. They were attacked, on 2 August 1925, by 500 Druze and Bedouin horsemen, led by Sultan Pasha al-Atrash. The rebel assault forced the French Army into full retreat and the battle turned into a rout. The victory at al-Mazraa was a turning point in the course of the rebellion, inspiring Syrian nationalists in the country's capital and the countryside to join the Druze in their revolt. Syria became independent in 1946. During the 1950s, the Ba'ath Party emerged as an influential force in Syrian politics, and one of the members of its Military Committee, Lieutenant Colonel Mazydad al-Hunaydi, was born in as-Sijn. As-Sijn was eventually renamed "al-Mazraa" in honor of the 1925 battle.
