Original sentence: Founded in 1876 and 1878 respectively, the Bancroft and Carrollton-Wight Societies are the oldest literary societies at a  public high school  in the United States.In 1906, after several years of defeat, City won its first debate against rival  Central High School of Philadelphia in the so called "inter-city debate"
Edited sentence: Founded in 1876 and 1878 respectively, the Bancroft and Carrollton-Wight Societies are the oldest literary societies at a public high school  in the United States.In 1906, after several years of defeat, City won its first debate against rival Central High School of Philadelphia in the so called "inter-city debate"