Complex sentence: In 1919 Spingarn was a co-founder of the publishing firm of Harcourt, Brace and Company, and he was to write such works as A History Of Literary Criticism In The Renaissance, Creative Criticism And Other Essays.
Split into simpler sentences: In 1919 Spingarn was a co-founder of the publishing firm of Harcourt, Brace and Company. He later wrote such works as A History of Literary Criticism in the Renaissance, Creative Criticism and Other Essays.