Flanagan’s ringn ’66 (1966) is on show at Tate’s Conceptual Art in Britain 1964-1979. The exhibition brings together many of Flanagan’s contemporaries such as John Latham, Mary Kelly, Michael Craig-Martin, Margaret Harrison, Sue Arrowsmith, Richard Long, David Tremlett and Bruce McLean. More information can be found here. There will also be various talks and lectures, information on which can be found here.