Niépce had been experimenting with ways to fix the images of a camera obscura since 1816. The photograph Niépce succeeded in creating shows the view from his window. It was made using an 8-hour exposure on pewter coated with bitumen. Niépce called his process "heliography". Niépce corresponded with the inventor Louis-Jacques-Mandé Daguerre, and the pair entered into a partnership to improve the heliographic process. Niépce had experimented further with other chemicals, to improve contrast in his heliographs. Daguerre contributed an improved camera obscura design, but the partnership ended when Niépce died in 1833.
In desperation, the defeated Sultan Mahmud II appealed to the empire's traditional arch-rival Russia for help, asking Emperor Nicholas I to send an expeditionary force to assist him and to save his reign. In return for signing the Treaty of Hünkâr İskelesi, the Russians sent the expeditionary force which deterred Ibrahim Pasha from marching any further towards Constantinople.
Under the terms of the Convention of Kütahya, signed on 5 May 1833, Muhammad Ali Pasha agreed to abandon his campaign against the Sultan, in exchange for which he was made the vali (governor) of the vilayets (provinces) of Crete, Aleppo, Tripoli, Damascus and Sidon (the latter four comprising modern Syria and Lebanon), and given the right to collect taxes in Adana.
Russia's gain dismayed the British and French governments, resulting in their direct intervention. From this position, the European powers brokered a negotiated solution in May 1833 known as the Convention of Kutahya. The terms of the peace were that Ali would withdraw his forces from Anatolia and receive the territories of Crete (then known as Candia) and the Hijaz as compensation, and Ibrahim Pasha would be appointed Wāli of Syria. The peace agreement fell short, however, of granting Muhammad Ali an independent kingdom for himself, leaving him wanting.
In 1833, Thomas Auld took Douglass back from Hugh ("[a]s a means of punishing Hugh," Douglass later wrote). Thomas sent Douglass to work for Edward Covey, a poor farmer who had a reputation as a "slave-breaker." He whipped Douglass so regularly that his wounds had little time to heal. Douglass later said the frequent whippings broke his body, soul, and spirit. The 16-year-old Douglass finally rebelled against the beatings, however, and fought back. After Douglass won a physical confrontation, Covey never tried to beat him again.
Despite this show, Muhammad Ali's goal was now to remove the current Ottoman Sultan Mahmud II and replace him with the sultan's son, the infant Abdülmecid. This possibility so alarmed Mahmud II that he accepted Russia's offer of military aid resulting in the Treaty of Hünkâr İskelesi.