The night before Halloween in 1938, 23-year-old Orson Welles and his Mercury Theatre on the Air performed a radio adaptation of HG Wells’s The War of the Worlds.

It would become one of the most notorious radio broadcasts in history. In their own words, from the BBC's archive, Orson Welles, producer John Houseman and writer Howard Koch describe how it was "a very boring show" until they had the idea to update the science fiction story, using reportage and the name of a real location in New Jersey in the United States, as the scene for where aliens from Mars would invade.

Up to six million people tuned in, most of whom had no idea that what they were listening to was fictional. It prompted mass panic. Orson Welles delights in recalling "Suddenly everyone started driving at 125 miles per hour," saying, "I'm going to the hills". Produced and presented by Josephine McDermott.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there.

For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more.

Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue.

We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher.

You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: Orson Welles rehearsing The War of the Worlds. Credit: Bettmann/Getty Images)

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