YOU SAID:
Today is the greatest day I’ve ever known.
INTO JAPANESE
今日は私が今までに知った中で最高の日です。
BACK INTO ENGLISH
Today is the best day I have ever known.
INTO JAPANESE
今日は私が今までに知った中で最高の日です。
BACK INTO ENGLISH
Today is the best day I have ever known.
That didn't even make that much sense in English.