Complex sentence: When a group of friends at the City College of New York tried to join a fraternity, they were denied membership because the group was composed of Christians and Jews, in response they organized the first chapter of Delta Sigma Phi on December 10,1899.
Split into simpler sentences: When a group of friends at the City College of New York tried to join a fraternity, they were denied membership because their group was composed of Christians and Jews. In response, they organized the first chapter of Delta Sigma Phi on December 10,1899.