Hi,
I was wondering if the change from historic_township to town was discussed with Irish mappers or anywhere else? In isolation "place=town" suggests this is actually a town currently. Only the boundary=historic tag and the end dates give clues that this is not a real "place=town", and even that is not entirely clear - does that apply to only the boundary, or also to the place node? I'm not sure we can rely on data consumers checking other (relatively obscure) tags to realise that this is not a genuine place=town.