“Over the years, it’s been passed around, first in photocopies and later as a PDF. … It’s made its way onto required-reading lists and been cited hundreds of times.” There has even been a scholarly conference devoted to it. Julius S. Scott completed The Common Wind: Afro-American Currents in the Age of the Haitian Revolution in 1987, and it’s only coming out in print this month. Reporter Tom Bartlett investigates why.