The Green Book emerged at a time when Black Americans faced systematic exclusion from public accommodations. Restaurants refused service, hotels turned guests away, and gas stations denied restrooms. In many towns, posted sundown laws threatened Black travelers with violence if they remained after dark.
Victor Hugo Green saw an opportunity in this crisis. Inspired by similar guides for Jewish travelers, he began compiling listings from his network of postal workers across the country. What started as a 15-page pamphlet focused on metropolitan New York grew into a national and eventually international directory.
The guide was published annually, with gaps during World War II paper rationing. Each edition was updated with new listings, reader submissions, and community feedback. By the 1960s, it covered all 48 states, Bermuda, Mexico, and Canada.