YOU SAID:

The concept of resistance to fire is one that is as old as history itself

INTO JAPANESE

耐火の概念は歴史そのものと同じくらい古いものです

BACK INTO ENGLISH

The concept of fire resistance is as old as history itself

INTO JAPANESE

耐火性の概念は歴史そのものと同じくらい古い

BACK INTO ENGLISH

The concept of fire resistance is as old as history itself