Considerable progress seems to have been made in tradal matters.    From Wordnik.com.  [A History of the Japanese People From the Earliest Times to the End of the Meiji Era] Reference

This was notably the case with the Ouchi, whose tradal connexions gave them special access to Chinese books.    From Wordnik.com.  [A History of the Japanese People From the Earliest Times to the End of the Meiji Era] Reference

Jesuits access to the island of Amakusa, where one of the local barons, tempted originally by tradal prospects and afterwards urged by his wife, called upon his vassals to choose between conversion or exile, and issued an order that any Buddhist priests refusing to accept Christianity would have their property confiscated and their persons banished.    From Wordnik.com.  [A History of the Japanese People From the Earliest Times to the End of the Meiji Era] Reference