Complex sentence: In 1952, at the age of 21, he came to the U.S. where he enrolled in the University of Dubuque, Iowa, and he received a Bachelor of Arts and Science degree from the University of Dubuque in 1955.
Split into simpler sentences: In 1952, at the age of 21, he moved to the U.S. and enrolled in the University of Dubuque, Iowa. He received a Bachelor of Arts and Science degree from the University of Dubuque in 1955.