Japan was a closed country for over 200 years in the Edo period with the exception of Dejima in Nagasaki which remained open to other countries; regulations such as a ban on foreign voyage to Japan and production of large ships were in effect.
日本は江戸時代に200年以上に渡って鎖国を続けており、対外的な窓は長崎の出島に限られ、日本人の海外渡航や大船建造の禁止など統制が行われていた。