The first UFO sighting may have taken place in 329 BCE, when Alexander the great described two great silver shields that swooped to attack his armies, startling his soldiers, horses and elephants to such an extent, that the battle had to be postponed to the next day.
The first recorded UFO sighting in modern times was by Kenneth Arnold in 1947. Arnold spotted nine unidentified flying objects near Mount Rainier in Washington state, which led to widespread public interest in UFOs.
Galilao mapped the moon and saw jupiters moona
me
The first widely reported UFO sighting took place in 1947 in Roswell, New Mexico, when a rancher discovered debris on his property which some believe to be from an alien spacecraft. However, the incident was later explained by the U.S. military as a weather balloon.
The first person to see a living cell under a microscope was Antonie van Leeuwenhoek, a Dutch scientist, in the late 17th century. He observed and drew various microorganisms, including bacteria and protozoa, which he called "animalcules."
The first person to discover cells was Robert Hooke, an English scientist who observed cork cells under a microscope in 1665. He coined the term "cell" to describe the small, box-like structures he saw, which reminded him of the cells inhabited by monks.
That would be before written history. We can't know who the first person was that saw something flying and couldn't tell what it was.
If a UFO was found by a person, then it was no longer flying and no longer unidentified; therefore, no longer a UFO.
first of all ik they exist because I SAW ONE I WITH MY OWN EYES! there are even youtube videos on them that proves they exist it was realy freakty that i saw a ufo at school nad i was the only one who saw it..
We cannot know, they have been observed since ancient times
rigoberto pito
So few sightings are actually reported, there is no way to know that answer.
Officially, it would be October 2011. Unofficially, Jan. 2012.
"UFO" does not mean alien spaceship. So far there is no scientific reason to think even one alien spaceship has ever landed on Earth. UFO just means "I saw something in the sky and I personally don't know what it was."
Not that I know of.They went to the moon to experiment, and also to be the first country (USA) on the moon. :D
In his basement, high....
Many people claim to have seen UFOs.
The first actual UFO sighting was in 1500 B.C.!