[This Day] 'Post-Brexit Era' is a concept that is subject to different interpretations. First, it can refer to the first referendum, held in 1975, to determine whether or not Britain should continue to sustain its membership of the then European Economic Community (EEC) or should simply withdraw its membership. Since Brexit is about withdrawing from the EEC, or politics of withdrawal, brexiteering era can be argued to have begun in 1975 and we can rightly talk about the first post-referendum withdrawal era.