Simplify the following text for a Grade 8 native English-speaking person.
Original: A similar edict had been issued in 311 by Galerius , then senior emperor of the Tetrarchy ; Galerius ' edict granted Christians the right to practice their religion but did not restore any property to them .
Simplified: In 311 , Galerius had made a similar edict , though it did not return any property to them .