There is the theory that there are more 'visitations' than ever before. Or that cell phones and small cameras are commonplace and are just capturing what was always there. It is possible that it may be some of both of the above.
That was prior to written history so there is no record of the first sighting.
the first sighting was in 1,000,907 BC so yeah that's when it occured.
September 11, 2011, sighting over Apple Valley, CA.
Probably not, because UFO sightings are so extremely unlikely that one can safely assume they do not exist.
This isn't really proven or anything but it is very interesting and facinating Please search: Leonardo de Vinci UFO Painting So when you asked: "Have Their been any UFO sightings proven" I thought of this painting. My reasoning is why would a extremely smart scientist and Painter paint a UFO in the background about 500 years ago when UFO's weren't even a thing yet? Did Leonardo really see a UFO? However According to the head of the secret Pentagon program they say that: " it has been proven beyond reasonable doubt".
Langley AFB is an Air Force Base and also a CIA headquarters compound, so this would be a very likely (Intelligence) sighting that would not have been publicized.
i think this was a UFO sighting, i was driving home when i saw a dark blue triangle in the sky, this was on May 11 Saturday, at about 1:00 PM, 2011. i thought it was a kite at first but it was going so fast and it was so big that there was no way it was a kite. a UFO? i thought to myself. a minute after it disappeared a helicopter went in its direction. then i wondered if the government saw the UFO and tried to catch it.
well yes i saw one with my own eyes trust me and im only 10 and i know it was a UFO because there was a sighting on the computer at the same date same time so yes UFO's are ral
President James Carter, then governor of Georgia. he is an Annapolis Graduate, qualified on submarines, so has a technical-miltary background in a sense ideal for a UFO observer. no other President or politician has discussed UFO personal observations publicly.James Carter, who was governor of Georgia at the time.
I can't quite put my nose on it but according to my calculations, there should be another UFO sighting any time. Ohio is an extraordinary place so it is well worth a visit.
I can show you pictures of UFOs, but do you mean unknown to you or unknown to both of us. Most UFO pictures I know what they're a picture of so they're not unknown to me. But I can show you pictures of objects that appear to be flying that you won't know what they are.
According to MUFON, California, Texas and Florida, in that order, have the most reported sightings. All three of these states have many sunny days and clear nights which may make it easier to spot UFO's.