Complex sentence: This cultural affirmation was achieved by bringing a new sense of nationalism for Mexican-Americans, drawing ties to the long forgotten history of Chicanos in lands that were very recently Mexican, and creating a symbolic connection to the ancestral ties of Meso-America.
Split into simpler sentences: This cultural affirmation was achieved through a new sense of nationalism for Mexican-Americans. And also by drawing ties to the long forgotten history of Chicanos in lands that were very recently Mexican and also by creating a symbolic connection to the ancestral ties of Meso-America.