Blackwood Magazine most likely introduced the term in 1819, but Edgar Allan Poe popularized it some 25 years later with some of his published material: Marginalia. Since then, authors have had varying degrees of success creating their own collections of published marginalia. Among them is Walter Benjamin, who struggled after 13 years of research, leaving behind The Arcades Project: "the theater," he called it, "of all my struggles and all my ideas"