 By the beginning of the seventeenth century, they spread eastward into fertile lands of Karaiazi (modern-day Gardabani Municipality) and in the west, they reached Shulaveri and the Dmanisi Gorge.Their consolidation led to the formation of the Azeri community.The area populated by ethnic Azeris today is historically known as Borchali (which in the form "Burjoglu" was originally the name of a Turkic tribe that settled there in the seventeenth century).