Difference between Archaean and Early

Archaean

Part of speech: adjective

Definition: of, or relating to the geologic eon from about 3,800 to 2,500 million years ago; comprises the Eoarchean, Paleoarchean, Mesoarchean and Neoarchean eras; marked by an atmosphere with little oxygen, the formation of the first continents and oceans and the emergence of simple life

Part of speech: proper noun

Definition: the Archaean eon.

Early

Part of speech: adjective

Definition: At a time in advance of the usual or expected event.Arriving a time before expected; sooner than on-time.Near the start or beginning.

Part of speech: adverb

Definition: At a time before expected; sooner than usual.

Example sentence: Early to bed and early to rise makes a man healthy, wealthy and wise.