The declaration of war this day a century ago changed just about every life across Wales. It transformed David Lloyd George - from politician to statesman . He was - by 1918 - described as 'the man who won the war' - the Prime Minister and the most famous person in Britain. All this from a man who started life in a small cottage on the Lleyn peninsula: Rob Shelley has been looking at the life - and legacy - of Lloyd George.
People across Wales are switching off their lights for an hour this evening and lighting a candle of remembrance.
ITV Wales correspondent Richard Morgan writes about his experience of researching the stories behind those killed in the Great War
All in one place: See some of ITV Wales's reports marking the centenary of the outbreak of the First World War here.