The meteoric urban growth that occurred in Japan at the beginning of the early modern period had profound and diverse consequences for Japanese history. Historians have identified seventeen temple towns, all founded in the middle decades of the sixteenth century. In some cases, the daimyo actually converted the temple towns into their own castle headquarters. It has become a historical truism to say that Oda Nobunaga initiated the political and economic programs that resulted in the early modern state; that Toyotomi Hideyoshi amplified them; and that Tokugawa Ieyasu supplied the final institutional refinements. The policies of the shogunate toward currency and the minting of coins also encouraged an expansion in the volume of commercial transactions and contributed to the emergence of castle towns as nodes of economic exchange. The expansion of urban markets was closely linked to the emergence of local towns, such as Johana, where businessmen could produce competitively priced goods.