States of Sudan
A further fracturing of provinces occurred in 1976.  Lakes split from Bahr al Ghazal, and Jonglei split off from Upper Nile.  Equatoria divided into East and West Equatoria.  There were thus eighteen provinces.  In 1991, the government reorganized the administrative regions into nine federal states, matching the nine provinces that had existed from 1948 to 1973.  On 14 February 1994, the government reorganized yet again, creating twenty-six wilayat (states).  The majority of the wilayat were either the old provinces or administrative subregions of a province.  As part of the new government structure in South Sudan in 2005, Bahr al Jabal was renamed Central Equatoria. In 2006, West Kurdufan was split and merged with North Kurdufan and South Kurdufan.