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Egypt, Britain and Sudan in the nineteenth century
Egypt under Muhammad Ali began conquering Sudan in 1820, and by the 1870s Egyptian rule extended far up the Nile. Britain occupied Egypt in 1882. In the same years the Mahdist uprising in Sudan overthrew Egyptian authority, culminating in the fall of Khartoum in 1885.
An Anglo-Egyptian army under Herbert Kitchener reconquered Sudan in 1896–1898, defeating the Mahdist state at the Battle of Omdurman in September 1898.
The Condominium Agreement of 1899
On January 19, 1899, Britain and Egypt signed the agreement establishing joint rule over Sudan. In form, sovereignty was shared; in practice, a British Governor-General governed. The agreement defined Sudan's northern limit as the 22nd parallel north, creating the straight Egypt–Sudan border that appears on many maps today.
The administrative line of 1902
Because both territories lay within a single British-dominated system, adjusting the internal line was a matter of administrative convenience. In 1902 the British redrew it to fit the use of the land by local communities: Bir Tawil, used by the Ababda, went to Cairo's administration, and the Halaib Triangle, used by Beja groups tied to Sudan, went to Khartoum's.
At the time, nobody needed to decide which line was the true international border. The question only arose when the condominium ended.
Independence and the inheritance of two borders
Egypt's 1952 revolution and growing Sudanese nationalism led to the 1953 agreement that set Sudan on the path to self-determination. Sudan became independent on January 1, 1956. The new state and Egypt each inherited a version of the boundary that suited them, and in 1958 the disagreement over Halaib became an open dispute. Bir Tawil, the price of Halaib for whichever state claimed it, was left to no one.
From colonial leftover to imperial territory
Bir Tawil is one of the stranger legacies of empire: a piece of land created by a colonial administrative adjustment and then abandoned by both successor states. On October 21, 2026, it became the territory of a new imperial state, the Sovereign Empire of Brendania, whose founding instruments derive no authority from either Egyptian or Sudanese law.
Frequently asked questions
What was the Anglo-Egyptian Sudan?
A condominium in which Britain and Egypt jointly ruled Sudan from 1899 to 1956, with Britain dominant in practice.
When did Sudan become independent?
January 1, 1956.
How did the Anglo-Egyptian Sudan create Bir Tawil?
It produced two borders: the 22nd parallel (1899) and an administrative line (1902). After independence, Egypt and Sudan each chose a different line, and under both choices Bir Tawil belongs to the other state.