Complex sentence: However, Chapel Hill still suffered the loss of more of its population during the war than any village in the South, and when student numbers did not recover, the university was forced to close during Reconstruction from December 1,1870 until September 6,1875.
Split into simpler sentences: However, Chapel Hill suffered the loss of more of its population during the war than any village in the South. When student numbers did not recover, the university was forced to close during Reconstruction from December 1,1870 until September 6,1875.