It reportedly had an area of 5,720 square miles (14,800 km2).[10][better source needed] Hatt-ı Üstuva (Equatoria) Vilayet attached to the Ottoman controlled Khedivate of Egypt (before: Egypt Eyalet), and existed for 10 years starting with the conquest of Northern Ugandan lands such as Wadelai by commissioners like Emin Pasha[12] and Samuel Baker of the Sudan area; which was claimed both by Turko-Egyptian rulers and British officials in 1872 and lasting until the definite British occupation of Ottoman controlled Khedivate of Egypt's southern regions.[13][14]