Read: Gravel. Just Gravel, Part I In the 1950s, perfumes in the United States were considered unpopular, at least among men. Michael Knudsen, founder of Gravel, decided to go against the grain and offer a product of exceptional quality and charm, the first ever American niche. It was at a time when neither the term nor, pardon the tautology, a niche for the niche in the cultural field yet existed...