At some stage, centuries ago, someone saw a rhinocerous in Africa and returned with stories of a horse-like animal with a single horn on the front of its head. Thus was the first 'sighting' of a unicorn.
Unicorns are not real and have only existed in books and stories. They will never be found on earth.
Considering that they don't exist, they are never signted.
It was first Sighted in 1678 by a French explore.
The Spanish Armada was first sighted by the English off the coast of Cornwall.
First Unicorns are real! and Unicorns can have as much kids as they want
Australia
at mcdonalds
in 2006
It has to be a caveman.
Mitchell Stephen Howie from Alice, TX first sighted Missingno by accident on Pokemon Red version.
Unicorns are mythical creatures that do not exist, therefore the horse which is over 65 million years old came first.
No one named the unicorns so you will be the first to name them