Complex sentence: He became head coach at the Polish Olympic Center in Katowice in 1984, moving to University of Notre Dame in the USA in 1990, as assistant fencing coach, and at the Indiana Fencing Academy until 1993.
Split into simpler sentences: He became head coach at the Polish Olympic Center in Katowice in 1984. Korfanty moved to the University of Notre Dame in the USA in 1990 as assistant fencing coach, and also coached at the Indiana Fencing Academy until 1993.