and historic radio broadcasts will be published online, including Richard Dimbleby reporting on Chamberlain's return after signing the Munich Agreement, Neville Chamberlain's declaration of war, and King George VI's radio address to the nation.
Relic BBC Radio recordings will be released to illustrate the reality of war for ordinary people in 1939, such as a broadcast reminding people not to try out their gas masks in the oven or behind the exhaust of a motorcar.
Previously unreleased photographs depict the challenges of wartime broadcasting, in pictures where sandbags and soldiers protect radio studios and documents that show news staff were warned that "this department will have to stand by in a period of comparative chaos".
Julie Rowbotham, executive producer, BBC Archive, said: "This was the first war where the radio was an essential source of news and information and the release of these broadcasts gives us the opportunity to experience first-hand what it was like for those tuning in as the nation went to war in 1939.
"The BBC archive provides a unique record of recent British contemporary history and this collection shows how important the BBC's role was in keeping the country informed during wartime."