YOU SAID:

Who started the First World War?

INTO JAPANESE

誰が最初の世界大戦を始めたか。

BACK INTO ENGLISH

Who started the first World War?

INTO JAPANESE

誰が最初の世界大戦を始めたか。

BACK INTO ENGLISH

Or the first world war began.

INTO JAPANESE

または、最初の世界大戦を始めた。

BACK INTO ENGLISH

Or the first world war began.