Complex sentence: Rebuilt after the war, the city entered a "Golden Age", as it become the largest city in Mississippi between 1890 and 1930, and a leading center for manufacturing in the South, with 44 trains arriving and departing daily.
Split into simpler sentences: Rebuilt after the war, the city entered a "Golden Age". It became the largest city in Mississippi between 1890 and 1930, and a leading center for manufacturing in the South, with 44 trains arriving and departing daily.