According to Julius Caesar in De Bello Gallico, one part of Gallia was inhabited by people who called themselves Celtae and whom the Romans called Galli. This area covers a large portion of modern France and Belgium. I wouldn't use the word "race" and ethnic group might be too much, as well. They were a group of tribes who shared common cultural practices and a language (or dialect). == == It simply means the native speakers of the Celtic languages. Being a native speaker of a language is not a matter of ethnicity. Just think of all the native speakers of English who have never been anywhere near England and the native speakers of Spanish who aren't Spaniards. :) The Celts were not of one single "race". The Atlantic Celts of Ireland and Britain are most closely related to the Basques of NE Spain not the Continental Celts of Central Europe. A good discussion about the use of the term is covered in The Origins of the Britishby Oppenheimer.
Yes
No one; the individual does not exist in Greek myth.
Janus did not exist in ancient greek mythology.
never, or always depends if you believe ancient greek mythology
They controlled the heros (sons or daughters of gods) fate. They are immortal and lived tho everything.
A Climax Community.
Minotaurs do not exist, it was a creature from Greek mythology
No, it is a creature in Greek mythology
Yes
No, Medusa does not really exist. She is a fictional character from mythology.
Vampires don't exist... they are Mythology.
No.
everywhere you look in your pants.
In Greek Mythology, yes.
Yes, and there is a lot of it. see link
Greek Mythology pre-dates Noah and the tales of the Bible; so, yes, it did, so too did Egyptian Mythology.
They exist in greek and roman mythology as beings with one mortal and one immortal parent.