In 1972 Bernal moved to Cornell University in New York, United States. There he resided in the Telluride House as a faculty fellow, and became a full professor in 1988. He taught there for the rest of his career, retiring in 2001. Initially he taught Government Studies at Cornell, and continued his research on modern Chinese history. Under the impact of the Vietnam War he had also developed an interest in Vietnamese history and culture, and learned the Vietnamese language. From about 1975, however, Bernal underwent a radical shift in his interests. In his own words:
The scattered Jewish components of my ancestry would have given nightmares to assessors trying to apply the Nuremberg Laws, and although pleased to have these fractions, I had not previously given much thought to them or to Jewish culture. It was at this stage that I became intrigued—in a Romantic way—in this part of my 'roots'. I started looking into ancient Jewish history and— being on the periphery myself—into the relationship between the Israelites and the surrounding peoples, particularly the Canaanites and the Phoenicians. I had always known that the latter spoke Semitic languages, but it came as quite a shock to learn that Hebrew and Phoenician were mutually intelligible and that serious linguists treated both as a dialect of a single Canaanite language.
During this time, I was beginning to study Hebrew and I found what seemed to me a number of striking similarities between it and Greek...
Bernal came to the conclusion that ancient Greek accounts of Egyptian influence on their civilisation should be taken seriously. He had been interested in ancient Egypt since childhood, in part inspired by his grandfather Sir Alan Gardiner. Bernal's new direction was strengthened by his discovery of the work of Cyrus Gordon and Michael Astour. In due course he wrote Black Athena. Bernal also wrote the book Cadmean Letters, devoted to the origins of the Greek alphabet. He devoted his next twenty years to writing the next two volumes of Black Athena, with the second volume devoted to archaeological and documentary evidence, and the third to linguistic evidence. He also spent considerable time defending his work. He became Professor Emeritus upon his retirement in 2001.
Personal life
In 1961, Bernal married Judy Pace. Together, they had one daughter and twin sons. They later divorced. His second wife, Leslie Miller-Bernal, and his five children survived him.
