YOU SAID:

The history of all hitherto existing societies is the history of class struggles

INTO JAPANESE

これまでに存在したすべての社会の歴史は、階級闘争の歴史である

BACK INTO ENGLISH

The history of all societies that have ever existed is the history of class struggle.

INTO JAPANESE

これまでに存在したすべての社会の歴史は、階級闘争の歴史です。

BACK INTO ENGLISH

The history of all societies that have ever existed is the history of class struggle.