Gilbert Seldes, the author of The Stammering Century, writes:

This book is not a record of the major events in Ameri­can history during
the nineteenth century. It is concerned with minor movements, with the
cults and manias of that period. Its personages are fanatics, and radicals,
and mountebanks. Its intention is to connect these secondary movements
and figures with the primary forces of the century, and to supply a
background in American history for the Prohibitionists and the Pente­costalists;
the diet-faddists and the dealers in mail-order Personality; the play censors
and the Fundamen­talists; the free-lovers and eugenists; the cranks and
possibly the saints. Sects, cults, manias, movements, fads, religious
excitements, and the relation of each of these to the others and to the
orderly progress of America are the subject.

The subject is of course as timely at the beginning of the twenty-first century as when the book first appeared in 1928. Seldes's fascinated and often sympathetic accounts of dreamers, rogues, frauds, sectarians, madmen, and geniuses from Jonathan Edwards to the messianic murderer Matthias have established The Stammering Century not only as a lasting contribution to American history but as a classic in its own right.