During the 2nd century AD, Bathus served as a significant military base for Roman legions, while Apsaros gained renown for its theatre.
After the disintegration of the Georgian monarchy and subsequent internal conflicts, Adjara changed hands multiple times until it became a part of the Principality of Guria in 1535.
Direct Ottoman control over Adjara was limited, and local Muslim Georgian nobility, including the Khimshiashvili, ruled as semi-autonomous beys.
[citation needed] Throughout the 1840s, the Ottoman Porte had to deploy significant forces from neighboring pashaliks to quell a rebellion led by Kor-Hussein Bey (Khimshiashvili).
He sought volunteers to support the struggle against Russian encroachment in Dagestan, and after the suppression of the Adjarian uprising, Hasbi managed to escape.
[4] Batum was a significant part of the Ottoman Empire's defensive network during the latter war, hosting both a 25,000-strong army under Dervish-Pasha and warships patrolling the Black Sea coastline.
The Russians attempted to dislodge the Turks from the Mukhaestate heights on April 14, 1877, but the Kobuleti Detachment under Lieutenant-General Oklobzhio made little progress.
In the face of Russian oppression of Islam, a considerable number of Muslims sought refuge in Turkey through a process of immigration known as Muhajiroba.
The Ottoman Empire financially supported an insurgent organization called The Avengers which made attempts on the lives of Russian officers, officials, and Adjarian collaborators.
"[citation needed] A thorough investigation, presided over by Grand Duke Georgi Mikhailovich, supported the Adjarians' loyalty, attributing allegations of disloyalty to Cossacks and Armenians who instigated confrontations with local Muslims.
Subsequently, the Council for Batum Region, under the leadership of the Russian cadet P. Maslov, was established as a provisional governing authority for Adjara from December 21, 1918, until April 28, 1919.
[6] In response, the Georgian government granted Adjara an autonomous status in the republic's inaugural constitution, initially drafted in July 1920 and formally adopted during the Red Army invasion of Georgia on February 21, 1921.
The territorial status of Adjara was acknowledged as part of the Georgian Soviet Socialist Republic in the Soviet-Turkish Treaty of Kars, signed on March 16, 1921.
In April 1929, Muslim villagers in the mountainous regions of Adjara launched an armed uprising against compulsory collectivization and religious persecution.
[12] Under Abashidze's control, Adjara experienced relative political stability and economic growth during the Georgian Civil War.
The central government criticized Abashidze for his pro-Russian stance and considered the Batumi-based Russian military unit as a base of power for the Adjarian leader.
Following the fraudulent elections of 2003 and the subsequent Rose Revolution in Georgia, Abashidze referred to the ouster of Shevardnadze in November 2003 as "a violent coup d'état".
Subsequently, President Saakashvili demanded that the Adjarian leader adhere to the Georgian constitution and initiate a disarmament process.
On May 6, the situation reached a turning point when local protesters took control of central Batumi, and Georgian Special Forces entered the region to disarm pro-Abashidze groups.
On May 7, 2004, direct Georgian presidential rule was implemented in Adjara, establishing a 20-member Interim Council responsible for governing the Autonomous Republic until fresh local elections could be conducted.
Regional parliamentary elections were held on June 20, in which the party "Victorious Adjara", endorsed by President Saakashvili, secured 28 out of 30 seats in the local legislative body.
The regional policy pursued by both central and local governments centered around encouraging foreign investments in the area, which prompted an extensive privatization campaign initiation.