A compiled timeline of the British Science Fiction Association. Special thanks and acknowledgements go to:

Rob Hansen for his work on Then: Science Fiction Fandom in the UK 1930-1980 (2016) - Available to purchase here.

Alex Bardy and all the contributors to Through the Decades: Sixty Years of the BSFA (2019) - Available here.

FANAC, and all who volunteer their time and support to the collecting and scanning of fandom documentation. Without their efforts, this collation of events and articles would have been impossible. Their website is available here.