Complex sentence: The Compromise of 1877 was a purported informal, unwritten deal that settled the intensely disputed 1876 U.S. presidential election, pulled federal troops out of state politics in the South, and ended the Reconstruction Era.
Split into simpler sentences: The Compromise of 1877 was a purported informal, unwritten deal that settled the intensely disputed 1876 U.S. presidential election. It resulted in the national government pulling the last federal troops out of the South, and formally ended the Reconstruction Era.