A list of some of the more provocative topics of the series Through the Wormhole which is currently at 11 books. To the best of my knowledge, some of these topics were introduced to ancient astronaut theory here first, others were greatly expanded:

Bag-Men: A Tuscarora Indian legend of foreigners arriving in North America in ships, each man covered in a leather bag. Bergen’s 2019 Lost Kingdoms of the Americas compared this to ancient Irish legends of Bag-Men.

Maiden Stone: Bergen’s 2019 Legend of the Four Cities compared the image on Scotland’s mysterious Maiden Stone to a similar image in Gobekli Tepe on the other side of the world. Gobekli Tepe had been long buried when the Maiden Stone was created.

Mermaids: Bergen’s 2019 Fairies of Ireland offered compelling evidence that mermaids and mermen were not aquatic beings who were half-human and half-fish — they were scuba divers. Ancient legends were quite specific in the descriptions of these humanoids and the suits that they wore to swim underwater.

Nordic aliens: Bergen’s 2019 Fairies of Ireland and other books in the series showed pretty conclusively that the fairies of Ireland more anciently known as the Tuatha de Danann were a branch of Nordic aliens who towered over humans, and that these extraterrestrials shared traits with Nordic aliens flying the skies in UFOs today.

Fairies of Ireland in Egypt and the Holy Land: Bergen’s 2019 Legend of the Four Cities laid out evidence that the fairies of Ireland traveled to Egypt, and to the biblical Holy Land, and that their druids presided over an academy in each region.

Fairies of Ireland in South America: Bergen’s 2019 Lost Kingdoms of the Americas analyzed descriptions from the ship’s logs of several expeditions which strongly suggest that the fairies of Ireland routinely traveled to the Rio de la Plata, or River of Silver in South America where Buenos Aires now sits.

Bird language of the extraterrestrials: Bergen’s 2019 Greek Gods of Africa compiled ancient legends from around the world describing the bird language of the gods and showed that it is still in existence today and being used by extraterrestrials near Nellis Air Force Base.

Greek gods in North America: Bergen’s 2019 Lost Kingdoms of the Americas offers provocative evidence that the Mycenaean civilization, being one of the most mysterious of the “vanished civilizations,” relocated to North America, and possibly South America as well.

The Chinese legend of Fusang: Bergen’s 2019 Lost Kingdoms of the Americas dissected the clues in this 499 A.D. expedition from China to a land far across the ocean to draw out a map of where they landed and what they saw, including what may have been ancestors of the Tall White extraterrestrials that Charles James Hall witnessed during his stint at Nellis Air Force Base. This was the topic of his five-book Millennial Hospitality series published between 2002 and 2013 having had multiple, ongoing encounters with this extraterrestrial species.

Fairies of Ireland in India: The fairies of Ireland traveled to India for healthy cows because the cows in Ireland were diseased with a “demoniac character.” Was this an ancient reference to Mad Cow Disease? If so, it could explain why India protected its cows, declaring them to be sacred. Bergen’s 2019 Forbidden Islands of the Gods speaks of this, as does Bergen’s 2019 Fairies of Ireland.

Druids were Ph.D. scholars: Ireland’s druids have been misinterpreted. They were teachers, scholars, judges, and historians who studied law, chronologies, topographies, genealogies, family histories, legal maxims, and divinity. They devoted 12-20 years to this study and earned a degree equivalent a Ph.D. today. They built schools which produced teachers, and they were literate. Bergen’s 2019 Fairies of Ireland gives us an in-depth history of Ireland’s druids.

New heaven, new Earth, new bodies: In the latter half, Bergen’s 2019 Forbidden Islands of the Gods delves deep into ancient End of Days prophecies in which Heaven and Earth pass away but there will be new heavens, a new Earth, and we will live there in our new physical bodies.

Transcontinental sailing ships: These extraterrestrials on Earth possessed self-propelled, self-navigating, voice-controlled transcontinental ships that traveled across oceans to destinations preprogrammed with a GPS system. Some of the ships also flew through the skies or dove down into the ocean. Several books in the series describe these ships, some of which were owned by the Tuatha de Danann, some by the Norse deities, and one was owned by the Native American peacemaker Hiawatha.

Altered history: Humans have gone to great lengths to alter Earth’s extraterrestrial history including the genealogies of the Celtic dieties, the Bible, writs of the early Church Fathers and other texts, in addition to burning thousands upon thousands of books. Bergen’s 2014 Age of Giants, Bergen’s 2019 Fairies of Ireland, Bergen’s 2019 Greek Gods, and other books in the series detail these efforts.

An Irish druid may have possessed an Antikythera Mechanism: Bergen’s 2019 Greek Gods gives us several legends which suggest use of the Antikythera Mechanism, including by an Irish druid.

Amazon warrior women may have ruled the world: Bergen’s 2019 Amazon Queens compiled legends of the Amazon warrior women and their exploits and placed each known position on a world map. Their colonies extended across most of the known world and their queens ruled over vast kingdoms, suggesting that these giant women might once have ruled the world.

God did not create the world, he terraformed it: This is suggested by Inca legends as shown in Bergen’s 2019 Star People of the Americas.

Lost island of Taprobane: Bergen’s 2019 Forbidden Islands of the Gods makes a strong case for this island to have nearly filled the Arabian Sea between India and Africa leaving behind islands such as the Maldives when it sank down into the sea.