だい日本 にっぽん ゆたか秋津洲 あきつしまでした
dainippon yutaka akitsushimadeshita

Noun
Desu Copula

The polite past form of 大日本豊秋津洲

1. Was Yamato (Japan).; Was the bountiful land of Japan.

Past/Perfective
Polite