A Place of Common Place

By the 17th century, commonplacing had become a recognized practice that was formally taught to college students in such institutions as Oxford. John Locke appended his indexing scheme for commonplace books to a printing of his An Essay Concerning Human Understanding. The commonplace tradition in which Francis Bacon and John Milton were educated had its roots in the pedagogy of classical rhetoric, and “commonplacing” persisted as a popular study technique until the early 20th century. Both Ralph Waldo Emerson and Henry David Thoreau were taught to keep commonplace books at Harvard University (their commonplace books survive in published form). Commonplacing was particularly attractive to authors. Some, such as Samuel Taylor Coleridge and Mark Twain, kept messy reading notes that were intermixed with other quite various material; others, such as Thomas Hardy, followed a more formal reading-notes method that mirrored the original Renaissance practice more closely. The older, "clearinghouse" function of the commonplace book, to condense and centralize useful and even "model" ideas and expressions, became less popular over time.