Ardal dynodi
Math o endid
Ffurf awdurdodedig enw
Ffurf(iau) cyfochrog enw
Ffurf(iau) safonol o enw yn ôl rheolau eraill
Ffurf(iau) arall o enw
Dynodwyr ar gyfer cyrff corfforaethol
Ardal disgrifiad
Dyddiadau bodolaeth
Hanes
The first party congress was held in July 1920 in London. The Congress was mostly held in London, as were the congresses described in this group. The Congress met irregularly, every one or two years, except during the Second World War when they met less often. A list of congress dates and venues is available as an appendix to Henry Pelling, The British Communist Party: A Historical Profile(London, 1975).