Funny you guys mention it, cuz there's a 271-page topic on abovetopsecret.com that's been active since 2006 that claims
stargates are real. I'll leave it to you to inquire within.
UFO's in ancient art:
This is an illustration from a book entitled “Theatrum Orbis Terrarum” by Admiral Blaeu. It depicts a UFO sighting made by two Dutch ships in the North Sea in 1660.
An illustration from a book titled “Ume No Chiri (Dust of Apricot)” published in 1803. A “foreign ship and crew” witnessed at Haratonohama, Japan this strange object, said to be made of iron with weird letters inside the ship – shown in the drawing.
These two paintings of crusaders are from a 12th century manuscript “Annales Laurissenses”, and depict a UFO sighting in the year 776, during the siege on Sigiburg castle, France
This 14th century painting is located in the Visoki Decani Monastery in Kosovo. The two objects on either side seem to depict flying crafts of some description, with people inside them
In this famous 15th century painting of Mary, we can see what looks like a UFO in the upper right hand corner, with a man and his dog looking up curiously.
This drawing depicts a UFO sighting over Hamburg, Germany on the 4th November 1697. These mysterious objects were described as “two glowing wheels"
Drawings from Sego Canyon, Utah, c. 5,500 BC depicting strange-looking entities
This picture by Samuel Cocciu depicts large black and white spherical UFO's over Basel, Switzerland in 1566. Notice the reaction of the people
An illustration of the sighting from 1479 in Arabia from the book, “Prodigiorum Ac Ostentorum Chronicon”, by Conrad Lycosthenes. The book is held at the Australian Museum Research Library
Notabilia Temporum by Angelo de Tummulillis, illustrates the "flaming girder" which was sighted in February 1465 during the reign of Enrico IV
This is a renaissance illustration of a UFO sighting that occurred in Rome. This account is detailed in the book "Prodigiorum Liber" by Roman historian Julio Obsequens. The caption translates: "Something like a sort of weapon, or missile, rose with a great noise from the earth and soared into the sky
These carvings, on display in the British Museum, are from Iraq and date back to around 5,000 to 4,500 B.C. Many ancient people groups and many even in current times, have reported reptilian looking beings in association with UFO activity. These are clear examples of this.
A painting called "roue celeste flamboyante", which means "blazing celestial coil", depicts a sighting of a burning wheel in the year 900 over Japan.