Isolation

I'm worried that the Edo Shogunate (Bakufu) will be affected by foreign influences and control will be weakened. I'm going to strictly manage trade with foreign countries, and I'm going to restrict foreign countries' activities in Japan. It was established in the 17th century and half (Naka), and until the 19th century (Seiki) and a half (Naka) of Perry's arrival (Raiko), about 200 years (Yaku) (Aida) was implemented during the period.

Reference:　“Tsunogawa Japanese History Dictionary”, Naohiro Asao, et al., Kadokawa Shoten, 1997.09