Complex sentence: In 1945 Zevi became Professor of Architectural History at the University of Venice and was later Professor at the University of Rome, as well as a member of the "International Academy of Architecture (IAA)" in Sofia, Bulgaria.
Split into simpler sentences: In 1945 Zevi became Professor of Architectural History at the University of Venice. Later, he was a Professor at the University of Rome, and a member of the "International Academy of Architecture (IAA)" in Sofia, Bulgaria.