Japanese scholar Aizawa Seishisai made early predictions of the fall of the Tokugawa Shogunate as well as impending Meiji era social and political problems .
Japanese scholar Aizawa Seishisai warned against impending Western imperialism during the early nineteenth century .
Japanese scholar Aizawa Seishisai , who warned against impending Western imperialism during the early nineteenth century , made early predictions of the fall of the Tokugawa Shogunate as well as impending Meiji era social and political problems .