Timeline: UFO Encounters

According to a list of reported UFO sightings in wikipedia, looks like UFOs have been around since the 2nd millennium. They might have been around way before that too, who knows! But before watching the video, you should be aware of the difference between UFO and Aliens, because not all UFOs are aliens. Enjoy the video.

DISCLAIMER: This probability/comparison is based on public data, surveys, public comments & discussions and approximate estimations that might be subjected to some degree of error.

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