Complex sentence: Following the end of martial law and readmission to the Union during Reconstruction, Georgia was overwhelmingly dominated by the Democratic Party for a hundred years as did many other states of the Confederacy.
Split into simpler sentences: Following the end of martial law and readmission to the Union during Reconstruction, Georgia was overwhelmingly dominated by the Democratic Party. It existed under one-party rule for a hundred years as did many other former states of the Confederacy.