Polytheism and Mysticism
you mean greek
fist it ancient Greek and yes they were done out side
A sprint foot race.
They were run to honout the geek gods.
HINDUISM - The World's Ancient RELIGION.
They practiced the ancient Egyptian religion.
The religion of ancient Rome was Roman religion.
Extraordinary, Unusual, Elegant. ,Geek Patrol
'Geek' is an ancient word, which has always been used to signify someone strange or peculiar. In modern times, a geek is specifically someone with a strange or peculiar obsession with intellectualism and/or obtuse details in science and technology (perhaps synonymous with a boffin). A 'geek alert' is a slang term for an informal warning that someone is prone to geek-like behaviour or conversation.
Because the Greeks were an advanced civilization
No. It is a type of ancient building, that was used for ancient religions, but is not the name of a religion.
Both of these Ancient Civilizations worshipped many gods/goddesses.