YOU SAID:

the British empire is the only empire that has ever banned black slavery

INTO JAPANESE

大英帝国は、黒人奴隷を禁止した唯一の帝国である

BACK INTO ENGLISH

The British Empire is the only empire that banned black slaves.

INTO JAPANESE

大英帝国は黒人奴隷を禁止した唯一の帝国です。

BACK INTO ENGLISH

The British Empire is the only empire that banned black slavery.

INTO JAPANESE

大英帝国は黒人奴隷制を禁止した唯一の帝国です。

BACK INTO ENGLISH

The British Empire is the only empire that banned black slavery.