Simplify the following text for a Grade 12 native English-speaking person.
Original: Egypt and Sudan were never formally incorporated into any European colonial empire ; however , after the British occupation of 1882 , Egypt was effectively under British administration until 1922 .
Simplified: Egypt and Sudan were never formally incorporated into any European colonial empire . However , after the British occupation of 1882 , Egypt was effectively under British administration until 1922 .