the first vampire sighting was in 0001bc.
That was prior to written history so there is no record of the first sighting.
The first written sighting of the Northern Lights was reported to be in 2600 B.C
the first sighting was in 1,000,907 BC so yeah that's when it occured.
565 AD
Well a Kraken is a mythological creature, so there never was a first sighting of something that didn't exist. But it was seen in Pirate's of the Caribbean ;)
Nope
no
That event has not yet happened.
Fredrick Fleet
It's first sighting was in 1865
The first "sighting" of Stonehenge was when it was built. Since that time it has remained in the same location, which has been common knowledge. It has never been lost or rediscovered.