It just occurred to me today that chicken wings (Buffalo-style or not) were almost unknown in bars until a few years ago, then suddenly were everywhere. In other words, wings took over as the standard food available in bars.
Years ago, say up to 1975 or so, the bars I drank in (in small prairie towns) all had pickled eggs, some with a choice of pickled sausage. Later almost all of them abandoned the eggs and had only chips, nuts and pretzels. Later again they brought in hot dogs for a while, and finally moved on to wings.
All those transitions, as far as I can recall, were fairly sudden. One style of food would dominate for several years, even for ten or more, then within a year or so that ‘standard’ food would be replaced by another.
Have other people noticed this kind of progression? Have you seen the same sequence of foods, or is it different in different areas? Most important (though still Mundane and Pointless enough!), are the transitions as quick as I remember?