Simplify the following text for a Grade 8 native English-speaking person.
Original: When the state of Brandenburg was newly founded in 1990 , the districts of LÃ 1\/4 bben , Luckau and KÃ nigs Wusterhausen had been established .
Simplified: When the state of Brandenburg was newly founded in 1990 , the districts of LÃ 1\/4 bben , Luckau and KÃ nigs Wusterhausen were formed .