Complex sentence: With the coming of the railroad, businesses in nearby Perryville began relocating to be near the McAlester Rail Depot, marking the end of Perryville and the beginning of McAlester.
Split into simpler sentences: With the coming of the railroad businesses in nearby Perryville began reloacting to be near the McAlester Rail Depot. This was the end of Perryville and the beginning of the town of McAlester.