Complex sentence: The small town with only one road, scattered buildings, and only a few boards to walk over the muddy streets, became the trading center of the county with a population around 100 during the feud.
Split into simpler sentences: The small town had only one road, scattered buildings, and only a few boards to walk on over the muddy streets. It became the trading center of the county with a population of around 100 during the feud.