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Map of London Blitz bombings created

7 December 2012 Last updated at 20:48 GMT

An interactive map showing the location of bombs dropped on London during the Blitz has been created.

From 7 September 1940, the capital was bombed for 57 consecutive nights, killing more than 20,000 people and making 1.4 million people homeless.

The map reveals the devastation caused by the Blitz over eight months.

The year-long project, called Bomb Sight, was devised by a team from the University of Portsmouth using data from the National Archives.

BBC London spoke to 92-year-old Frances Sewell, who worked in the City when the area was attacked.

Black and white footage in this report is from British Pathe