Notes: • Early conventions did not always have a particular name, and sometimes were given a name retrospectively when another Eastercon was held in the same town, eg,
Brumcon only acquired its name when
Brumcon II was held. • The 1957 convention held in Kettering has acquired a semi-mythical status among British
fandom, as there does not appear to be any surviving contemporary documentation from the con itself; however, there is just enough evidence from fanzines of the time and other fan memorabilia to suggest that it did, in fact, take place. • The official numbering of the conventions has been somewhat adjusted, following the naming of the 1972 convention as "Eastercon 22" which necessitated the counting of 21 previous Eastercons, which is why the 1951
Festivention is not counted. • Convoy, the 2007 Eastercon elected by members of Concussion, was cancelled at the end of October 2006. Contemplation was formed at the 2006
Novacon by Chris O'Shea and Fran Dowd as a very short notice emergency replacement. Convoy's guests of honour were invited to attend, and Sharyn November initially accepted, but she was ultimately unable to attend due to work commitments. • Pasgon was elected at Dysprosium to be the 2017 Eastercon to be held in Cardiff, but had to be cancelled in March 2016 due to issues with its planned venue. Eastercon 2017/Innominate in Birmingham was elected in its place at Mancunicon. • The 2020 convention,
Concentric was cancelled less than a month before it was scheduled, due to recently announced UK Government guidelines related to the
coronavirus pandemic. An online bidding session was held, with ConFusion selected for the 2021 Eastercon. 846 members had registered before the convention was cancelled. • The 2021 Eastercon,
ConFusion was originally planned as an in person event, but was converted to an online event when it became clear that an in person convention would not be possible. 466 people took part in the online convention. • The 2022 convention,
Reclamation had 797 registered members. 659 were physically present. 80 people viewed streamed panels, 41 of those were not present at the convention. • The 2024 Convention was the first to be held at the ICC Telford, and marked a divergence from tradition, in that the convention was only the second to be held in a conference centre rather than in a hotel; the first was 2004 (Blackpool) which was held at the Winter Gardens. • The 2025 Convention was the first to be held on the island of Ireland. • Virtual/Online attendance shown in parentheses where available. ==References==