Complex sentence: After several changes over the next century, it was converted into a district in 1938, and enlarged by adding several municipalities from the neighboring "Amtsoberamt Stuttgart", and the "Oberamt Schorndorf", "Kirchheim unter Teck" and "Göppingen".
Split into simpler sentences: After several changes over the next century, it was converted into a district in 1938. Additionally, it was enlarged by adding several municipalities from the neighboring "Amtsoberamt Stuttgart", "Oberamt Schorndorf", "Kirchheim unter Teck" and "Göppingen".