Japan is an archipelago including four main islands and a great many smaller ones, located in the northern Pacific Ocean near China. The country is similar in size to Britain or New Zealand.
In Arthur Ransome's books
Captain Flint had apparently visited Japan: his trunk had a sticker of the Nippon Yusen Kaisha shipping line on it, the stickers delighted the able-seaman (SA28).
In Missee Lee, the Wild Cat and her crew are farewelled by Japanese sailors slung on planks from a Japanese merchant steamship as they leave the hundredth port; they stop their rust-chipping and shout Banzai (ML1).