What era were we in in Japan in the 1860's when the American Civil War was taking place?
A: What era were we in in Japan in the 1860's when the American Civil War was taking place?
「日本ではアメリカの南北戦争が起こっていた1860年代は何時代でしたか？」
What era were we in in Japan in the 1860's? で「1860年代は日本は何時代でしたか？」
Civil War で「南北戦争」
to take place で「起こる」
B: It was the Edo Period in Japan.
「日本は江戸時代でした」
the Edo Period で「江戸時代」
ご参考まで！
カナダ 
