Works that meet a relatively formal definition of alternate history have been with us since at least the nineteenth century. Aside from occasional fascinating literary sallies by the likes of Nathaniel Hawthorne and Benjamin Disraeli, most early counterfactual fictions were jingoistic wish-fulfillments or utopian whimsies, followed somewhat later by academic gedankenexperimenten. With the evolution of modern science fiction, alternate history came along for the ride, enriching the genre with visions of altered actualities to complement those of distant planets and turbulent futures.

Today alternate history is in its own right a major subgenre of speculative fiction. There are superstars such as Harry Turtledove and Eric Flint, more experimental efforts from Esther Friesner, Kim Stanley Robinson, and Christopher Priest, and continued incursions from literature by way of writers such as Peter Ackroyd and Philip Roth. Alternate history even has its own award, the Sidewise, named in honor of the seminal Murray Leinster short story “Sidewise in Time.” The award is administered by the estimable Steven H. Silver, whose dedication to the form is legendary.

Alternate history is alive and well and living on bookshelves worldwide. So why this anthology? Because, rightly or wrongly, alternate history has come to form a ghetto of its own within speculative fiction. A very large portion of the alternate history canon is concerned with militaria, fiction about soldiers and the wars they fight. This is as if an entire symphony orchestra were represented only by the brass section; however grand, the brass quickly becomes monotonous playing on its own.

We solicited work from among the best writers in the field. Some are masters of the genre, with the sort of deep thought and brilliant voice that makes a book such as this eminently rewarding. Others are newer players becoming well known for their achievements in urban fantasy, new weird, and all the other movements and subgenres of the past decade or two.

We felt that the form would benefit from being challenged by these sharply innovative voices. These are writers who can produce fascinating work in striking out across the countries of the mind where Lincoln was just a country lawyer, Ralph Vaughan Williams was only a soldier, and Bugsy Siegel was a Knight Templar. Even better, they can take us to places where the shift of history was something else entirely—a faery queen on England’s throne, stars missing from the summer sky, an endless spiral of time along the shores of the Mekong. In short, this book is intended to be a showcase of what can be done by some of the most brilliant minds writing today, many working in a form not normally their own.

Like a microcosm of speculative fiction, alternate history’s name is legion, for it is many, with a multitude of potentials. This collection brings new names and new ideas to this old and honorable field. With luck, it will bring new readers as well.