The Probert Encyclopaedia of General Information

CAPITALS

Capitals are the large letters used in writing and printing, most commonly as the initial letters of certain words. As among the ancient Greeks and Romans, so also in the early part of the middle ages, all books were written without any distinction in the kind of letters, large letters (capitals) being the only ones used; but gradually the practice became common of beginning a book, subsequently, also, the chief divisions and sections of a book, with a large capital letter, usually illuminated and otherwise richly ornamented.
Research Capitals