Of the five settlements, the most important was Dokuz Ağaç ("Nine trees"), today Măgura, a village in Cerchezu Commune, Constanța County, Romania.

After this date, the Arab settlements began to decline, and part of the population emigrated to the Ottoman Empire.

[7] A few decades later, in 1913, the Swiss anthropologist Eugène Pittard mentions that these colonies have dissolved and manages to find only a remnant of 14 unassimilated Arabs in the area, all men.

Following anthropological analyses, Pittard concluded that some of them had Negroid racial influences and relates this situation to the fact that the Arab population around the Red Sea often shows Negroid racial influences, as a consequence of the African slave trade practiced there in the past and their assimilation by the majority Arab population.

[8] In World War I, during planning of an attack on the Suez Canal, Ottoman military records noted that "there were two other volunteer groups made up of Turks, Syrian Arabs, Albanians and others from Romania".