n 1930, Lorenzo Greene traveled around the United States selling books about black history on behalf of his boss, Carter G. Woodson, the man who invented Black History Week (later Month), and his organization, the Association for the Study of Negro Life and History. Greene had a degree from Columbia University and “could rattle off Negro history like one could the multiplication table,” according to one customer. He kept a diary of his journey, which was published in 1996. It is a fascinating record of the reception he encountered hawking black history textbooks from Atlanta to Philadelphia to Chicago.