Because the people who had volunteered to run an International BiCon in 2000 decided they weren't ready – they went on to do the excellent first 'EuroBiCon' in 2001 – the first UK BiCon of the decade was also an international one. It would be ten years before another International BiCon happened in Europe, again held as part of a UK BiCon.
2000 – BiCon 2000 (Manchester)
2003 – BiCon 2003 (Docklands, London)
2004 – BiCon 2004 (Manchester)