Complex sentence: As with other post-war American universities, Northwestern underwent a tremendous expansion to accommodate surging student enrollments: between 1949 and 1974, over forty buildings were constructed or remodeled on the Evanston campus.
Split into simpler sentences: As with other post-war American universities, Northwestern underwent a tremendous expansion to accommodate surging student enrollments. Between 1949 and 1974, over forty buildings were constructed or remodeled on the Evanston campus.