History's Greatest Conspiracy Theories: Season 1

In our new series delving into historical conspiracy theories, Richard J Evans considers the idea that the Nazi leader escaped and led a long life in South America

In our new series delving into historical conspiracy theories, Joyce Tyldesley explores the origins of the theory that Ancient Egypt’s iconic monuments were built by creatures from out of this world

In our new series delving into historical conspiracy theories, Helen Rappaport reveals recent evidence that could tell us more about the theory of the missing grand duchess

In episode four of our new series on history’s most well-known conspiracy theories, we ask why many people don’t believe that William Shakespeare was the real author of the plays attributed to him.

In our new series delving into historical conspiracy theories, Francis French looks at why people continue to doubt NASA’s finest hour

In our new series delving into historical conspiracy theories, Flint Dibble questions the notion of a vanished civilisation that seeded its knowledge around the world