Complex sentence: It was founded in 1920 as the Winona Lake School of Theology, and was located in Winona Lake, Indiana until 1970 when it was moved to the Chicago area and changed its name.
Split into simpler sentences: It was founded in 1920 as the Winona Lake School of Theology, and was located in Winona Lake, Indiana during that time. In 1970, the school moved to the Chicago area and changed its name.