Changes

==Astronomy==

==Astronomy==

Eon equals an age; [[Cosmology|cosmological]] eons, ages. An example of an [[Astronomy|astronomic]] eon or age is the unit of measure used when talking about how long ago the [[solar system]] was created.

'''Eon''' equals an '''age'''; [[Cosmology|cosmological]] eons, ages. An example of an [[Astronomy|astronomic]] eon or age is the unit of measure used when talking about how long ago the [[solar system]] was created.

==Geology==

==Geology==

Eon, aeon: the longest division of [[Geology|geologic]] time, geological time; a geological age; the time of the physical formation and development of the earth (especially prior to human [[history]]); also, the largest division of geologic time, defined as a unit of geological time equal to a billion years.  

'''Eon, aeon:''' the longest division of [[Geology|geologic]] time, geological time; a geological age; the time of the physical formation and development of the earth (especially prior to human [[history]]); also, the largest division of geologic time, defined as a unit of geological time equal to a billion years.  

'''Age'''; a very large division of geologic time usually longer than an era; a major division of geological time, subdivided into eras, comprising two or more eras; a geological era, such as "the Precambrian eon"; an era is usually divided into two or more periods, "the Triassic, the Jurassic, the Tertiary".

'''Age'''; a very large division of geologic time usually longer than an era; a major division of geological time, subdivided into eras, comprising two or more eras; a geological era, such as "the Precambrian eon"; an era is usually divided into two or more periods, "the Triassic, the Jurassic, the Tertiary".