This study provides a broad political and economic examination of the impact of the silk trade on nineteenth-century Japan. It analyzes the economic role of Japan’s eastern interior region and that of the port of Yokohama. It argues that the economic development in this period laid the foundations for Japan’s prewar industrial development in the late nineteenth century and was largely responsible for the integration of Japan into the global economy.

This extraordinary family account begins with the author's two illustrious grandfathers: one, a provincial samurai who became a founding father of the Meiji government; the other, a scion of a wealthy and enterprising peasant family who almost single-handedly developed the silk trade with America.