An eon is not a set period of time - instead, it is considered to be an age, usually consisting of 2 or more eras. Just think of it as a very long period of time. It is the largest division of geologic time.
The eon after the Hadean Eon is the Archean Eon. During this eon, significant geological and biological events took place, leading to the development of early life forms on Earth.
I am currently in the Phanerozoic Eon.
I don't know the plural of eon but the answer is more than 1 eon
It was in the Phanerozoic Eon.
It is the Phanerozoic Eon.
Paleozoic eon
Modern Eon ended in 1982.
Modern Eon was created in 1978.
Eon Reality was created in 1999.
Eon Productions was created in 1961.
Hyundai Eon was created in 2011.
Eon Mora is 5' 4".