Complex sentence: After graduation, she returned to Chicago and was hired by the Housing Authority in 1938 and became the first licensed African-American woman architect in the United States when she registered with the State of Illinois on December 28,1942.
Split into simpler sentences: After graduation, she returned to Chicago and was hired by the Housing Authority in 1938. She became the first licensed African American woman architect in the United States when she registered with the State of Illinois on December 28,1942.