100 years ago, at 11pm, the deadline for German withdrawal from Belgium passed. The British ultimatum had failed to deliver the desired result, and Britain declared war on Germany. What followed was the most devastating war in British history (certainly surpassing World War Two), and the most intense war in Europe up to that point.
Britain remembered the centenary in a number of events nationwide, with many local vigils and ceremonies. The #LightsOut campaign was very noticeable in London, with several key landmarks, such as the normally very illuminated Piccadilly Circus, cast into darkness. A pillar of light also rose out of the Houses of Parliament, and was noticeable throughout London. Here are 10 of the best photos from twitter from the proceedings.
— Royal British Legion (@PoppyLegion) August 4, 2014
— BBC Radio Cornwall (@BBCCornwall) August 5, 2014
— 4626 Sqn RAF Med Res (@4626Sqn) August 5, 2014
— Foreign Office (FCO) (@foreignoffice) August 4, 2014
— Taylor James Scott (@TaylorJamesScot) August 4, 2014
— ITV News (@itvnews) August 4, 2014
— Ministry of Defence (@DefenceHQ) August 4, 2014
— David Friend (@David_Friend01) August 4, 2014
— Nick Eardley (@nickeardley) August 4, 2014
Parliament's beam of remembrance to mark the centenary of the First World War. pic.twitter.com/wnzIqTJ8k9
— The Arsenal Forum (@ccooperuk) August 4, 2014