What is another word for Archean eon?
Pronunciation: [ˈɑːki͡ən ˈiːɒn] (IPA) 
The Archean eon, which spans from 4.0 to 2.5 billion years ago, is a pivotal period in Earth's history during which life first emerged and the planet's surface and atmosphere began to take shape. Synonyms for this time period include the Archeozoic era, the early Precambrian, and the Priscoan period. Each of these terms refers to the same geological era, but may be used differently depending on the context. Regardless of the label given to this era, the Archean eon served as a critical foundation for the development of life as we know it today.
