YOU SAID:

I am the best thing that happened to humanity since pizza

INTO JAPANESE

私はピザ以来人類に起こった最もよい事

BACK INTO ENGLISH

The best thing I happened to mankind since the pizza

INTO JAPANESE

一番ピザ以来人類をたまたま

BACK INTO ENGLISH

Best pizza since humanity happens to be

INTO JAPANESE

人類が発生するので最高のピザ

BACK INTO ENGLISH

Because mankind's best pizza

INTO JAPANESE

人類の最高のピザ

BACK INTO ENGLISH

Humanity's best pizza

INTO JAPANESE

人類の最高のピザ

BACK INTO ENGLISH

Humanity's best pizza