A first look at gunpowder's revolutionary impact on China's role in global history The Chinese invented gunpowder and began exploring its military uses as early

Tapping a wide range of sources, Kris Lane traces the complex web of global trading networks that funneled emeralds from backland South America to populous Asia

The launch of an exciting new series of parallel-world adventure from "the modern master of alternate history" (Publishers Weekly)

The story of the science, the technology, the politics and the military applications of saltpeter - the vital but mysterious substance that governments from the