Today, 4 August 2014, marks 100 years since Britain joined World War One. Commemoration ceremonies and events are taking place here in Britain and around the world.
Here at the Horniman, we too are remembering this time.
Tonight, between 10pm and 11pm, we will be taking part in Lights Out.
We will be turning off our lights, and leaving just one light on for a shared moment of reflection.
Elsewhere, we have loaned objects from our collections to two exhibtions in London which mark the 100 year anniversary of World War One.
Opening today, From Beef Tea to Battleships: Personal Stories from the First World War at the Guildhall Library, examines the personal accounts and experiences of those involved in World War One.
Alongside letters, medals and other personal effects, a World War One bugle from our collection will be displayed in this exhibition.
The bugle is best known as the instrument that sounds 'The Last Post', a call that features at military funerals and other ceremonies honouring those who have died in battle.
This free exhibition is open until 12 November 2014.
Currently at Bromley Museum, What did you do in the War? looks at the impact of the World War One on Bromley's life and the area's role in caring for casualties.
As a reminder that the lives lost were not all human, a horse skull from our collections is part of this exhibition.
Horses provided a vital component of the military communication and transport network, pulling artillery, transporting messengers and carrying soldiers and equipment across all kinds of terrain.
This exhibition runs until 26 September 2014, and is free to attend.
Both of these loans are part of our Object in Focus project, funded by Arts Council England.