It seems impossible: a small island in the North Atlantic, colonized by Rome, then pillaged for hundreds of years by marauding neighbors, becomes the dominant world power in the 19th century. Equally unlikely, a colony of that island nation across the Atlantic grows into the military and cultural colossus of the 20th century. How? By the sword, of course; by trade and industrial ingenuity; but principally, and most surprisingly, by the power of their common language.

In this provocative and compelling new look at the course of empire, Robert McCrum, coauthor of the best-selling book and television series The Story of English, shows how the language of the Anglo-American imperium has become the world's lingua franca. In fascinating detail, he describes the ever-accelerating changes wrought on the language by the far-flung cultures claiming citizenship in the new hegemony. In the 21st century, writes the author, English + Microsoft = Globish.