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About IWM London
History of Imperial War Museum London


Poster advertising the opening of the IWM at Crystal Palace, 1920
Poster advertising the opening of the IWM at Crystal Palace, 1920

In 1917 the Cabinet decided that a National War Museum should be set up to collect and display material relating to the Great War, which was then still being fought.  The interest taken by the Dominion governments led to the museum being given the title of Imperial War Museum. It was formally established by Act of Parliament in 1920 and a governing Board of Trustees appointed.

The Museum was opened in the Crystal Palace by King George V on 9 June 1920. From 1924 to 1935 it was housed, under very difficult conditions, in two galleries adjoining the former Imperial Institute, South Kensington.

On 7 July 1936 the Duke of York, shortly to become King George VI, reopened the Museum in its present home. The Museum was closed to the public from September 1940 to November 1946 and vulnerable collections were evacuated to stores outside London. Most of the exhibits survived the war, but a Short seaplane, which had flown at the Battle of Jutland, was shattered when a German bomb fell on the Naval Gallery on 31 January 1941 and some of the naval models were damaged by the blast.

At the outset of the Second World War the Museum’s terms of reference were enlarged to cover both world wars and they were again extended in 1953 to include all military operations in which Britain or the Commonwealth have been involved since August 1914.

Bethlem Royal Hospital, 1843 (neg. MH3478)
Bethlem Royal Hospital, 1843

The building which accommodates the Imperial War Museum London was formerly the central portion of Bethlem Royal Hospital, or Bedlam, as it was commonly known. Designed by James Lewis, it was completed in 1815. Sidney Smith’s dome was added in 1846 and contained the chapel. The east and west wings were demolished in the early 1930s to make room for the park which now surrounds the Museum.

Bethlem Royal Hospital dates back to 1247, when Simon Fitz-Mary, a wealthy alderman and sheriff of London, founded the Priory of St Mary of Bethlehem on the site which is now part of Liverpool Street Station. In the fourteenth century the priory began to specialise in the care of the insane. In 1547 Henry VIII granted the hospital to the City of London.

Corridor of Bethlem Royal Hospital (neg. BED10)
Corridor of Bethlem Royal Hospital
Bethlem was moved to a new building in Moorfields in 1676. Until 1770 there were no restrictions on visitors, and the lunatics, who were often manacled or chained to the walls, were a public attraction.

The hospital was housed in the present building from 1815 to 1930, when it was transferred to Eden Park near Beckenham, Kent.

Patients included Mary Nicholson who tried to assassinate George III in 1786; Jonathan Martin, committed in 1829 after setting fire to York Minster; the painters Richard Dadd and Louis Wain, famous for his cartoons of cats; Antonia White, author of Frost in May and Beyond the Glass; and the architect A W N Pugin who designed the Houses of Parliament and St George’s Roman Catholic Cathedral opposite the Museum.





The History of Imperial War Museum London