Simplify the following text for a Grade 5 native English-speaking person.
Original: Until 1918 and then again from 1933 ( due to a split from MÃ nchengladbach arranged by Joseph Goebbels ) through 1975 it was an independent city .
Simplified: From 1918 until 1933 it was part of the city of MÃ nchengladbach . Dr. Joseph Goebbels , who was born in Rheydt , arranged for the city to get back its independence .