One of the problems with trying to reconcile 'memorable or notable battles' is that they often get remembered for the wrong reasons. So therefore when asked, why? the average person will answer subjectively with that which is most memorable, like those famous heroic failures, Little big Horn, Dien Bien Phu, Gettysburg, Waterloo Etc. These questions are generational and educationally influenced, the older person can remember further back and depending on which way the wind is blowing, history education in schools can be erratic and military history may not be flavour of the month. If, however you pose the same question to a target group that is made up of more academically minded people you'll most likely get an objective response and those answers would be based more upon the technical merits of the military endeavor.
I agree with everybody, depending on the pool, even if in this case, like
@major bill wrote, it should refer to civil war enthusiastics. Anyway, considering sex, age, location, tastes of the respondents, i tend to exclude the level of istruction because, like i readed also here in the previous posts, education system is always worst, and this seems everywhere and expecially for a controversial matter like history, for the reasons each one can find and anyway well mildly described in the post i quoted above. Rather, if not expecially, here in Italy, the cradle of the european civilization, history is basically ignored, in school at first, like many other things .. too much explicit contents, and anyway this kind of knowledge don't make never enough in marketable terms.
Isonzo is in the italian popular culture just because they made us an head like a ballon for the WW1 celebrations, and this just because WW2 here in Italy is forbidden, a bit like today in the US for everything about the Confederacy ..
some gamers know a lot of the battles their beloved games are refighting.
Sure, game made a lot to spread the passion for military history, but isn't my case, i've always readed and studied history since i was kid despite basically i never assisted to a lesson of history in all my life, i swear you, and yes i know, it's too much indecent !