Evacuation - When were children evacuated from their homes in Britain? Main page

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Source 2
The Blackout was introduced in September 1939. This was to stop lights on the ground showing enemy aircraft where to drop their bombs.

Special Air Raid Wardens patrolled the streets after dark to make sure that no lights could be seen from house windows. People took a long time getting used to the Blackout.

Pillar-boxes were painted yellow, white stripes were painted on the roads and on lamp-posts. Blackout curtains were made to stop light escaping from windows in ordinary houses.

When men went out in the evening they were advised to leave their shirt-tails hanging out so that they could be seen by cars with dimmed headlights.

Even though steps were taken to make the streets safe, without proper lighting thousands of people died in accidents before the bombing even startedMore information and images on preparations for war in London.

 

You can find more information on the Holnet website London at War 1939 - 1945