Simplify the following text for a Grade 7 native English-speaking person.
Original: The Bir Tawil area came under Egyptian administration in 1902 , because it was grazing land of the Ababda tribe based near Aswan , Egypt .
Simplified: The Bir Tawil area came under Egyptian administration in 1902 . This was because it was grazing land of the Ababda tribe based near Aswan , Egypt .