Complex sentence: Journalism has been taught at ASU for nearly 75 years, was established as a department in 1957 and became a school named in honor of legendary CBS News anchor Walter Cronkite in 1984.
Split into simpler sentences: Journalism has been taught at ASU for nearly 75 years, was established as the focus of a department in 1957. The department became a school named in honor of legendary CBS News anchor Walter Cronkite in 1984.