The UnXplained Special Presentation S01 E09 Legends Unveiled

Throughout human history, cultures all over the world have produced unforgettable legends that have inspired people for centuries. Is it possible that ancient stories we consider to be fictional - legends, myths, and folklore - are actually fragments of a larger historical record that's been lost? Do some mythical stories have a basis in reality? And if so, which parts of the stories are fact and which are fiction?