Interesting fact:

If you’ve had the privilege to enjoy the luxury of business class you should take the time to thank Qantas Airways. Qantas were the first to conceptualize and introduce the class back in 1979. Very soon after, major airlines such as British Airways and American Airlines began imitating the practice and by now business class has become completely normalized. By that we mean everyone knows about it; definitely not everyone has had the chance to experience it!