Can anyone point me to some history on why/where/when double-breasted jackets were introduced? They've always seemed unnecessarily fussy to me. I'd like to know the full story, but in the meantime, it seems to me that they must have been invented so that the wearer could button either right over left, or left over right, depending upon .... what? Was it some sort of social indicator? Lower classes buttoned right over left; higher classes left over right? Or perhaps buttoning right over left (as in women's suits today) indicated a sexual preference? ... Just askin', folks. A related question: How did buttoning left over right become the "standard" for men's jackets and shirts? As you can see, I've got a lot to learn. Any help appreciated.