The Tasaday were a Stone Age cave dwelling people in the Philippines who were not aware of other people on the planet. So goes the initial story.

After their discovery in 1971 they appeared in cover stories of the National Geographic Magazine and other publications as well as in TV documentaries.

In 1986 Swiss journalist Oswald Iten exposed the story as a hoax perpetrated by a former Marcos minister.

Instead of conceding to the findings, some media like the National Geographic originally involved in describing the Tasaday as Stone Age immediately refuted the hoax facts and started a cover-up.