Complex sentence: In 1963, the school became the first in the United States to offer a one-year MBA program (1963), and was one of the first business schools to offer an MBA and Master of Information Systems dual degree.
Split into simpler sentences: In 1963, the school began offering a one-year MBA program, making it the first in the United States to offer the accelerated program. It was one of the first business schools to offer an MBA and Master of Information Systems dual degree.