It takes a brave soul to rewrite history by sailing against current thought. More than 500 years after Christopher Columbus "discovered" America, another seaman is doing just that, entering previously uncharted academic waters with claims that other "Europeans" -- the Minoans -- got there first, thousands of years earlier.

Gavin Menzies, 72 years old, is drawing on his experience as a former British Royal Navy submarine commander to prove in a book he is writing that the Minoans were such supreme seafarers...