The samurai radicals who overthrew the last shogun in 1868 promised to restore ancient and pure Japanese ways. Foreign observers were terrified that Japan would lapse into violent xenophobia. But the new Meiji government took an opposite course. It copied best practices from around the world, building a powerful and modern Japanese nation with the help of European and American advisors. While revering the Japanese past, the Meiji government boldly embraced the foreign and the new. What explains this paradox? How could Japan's 1868 revolution be both modern and traditional, both xenophobic and...