It defines years when something of significance happened.
Era means a piriod time starting from some special date or event.
a certain period of time
eras
There are 4 eras, and they are the Hadean, Archean, Proterozoic, and Phanerozoic eras.
Periods are subdivisions of geological eras.
Eras are divided into periods.
Four eras. that is Cenozoic,mesozoic,paleozoic and precambrian
It means "when you were young".
you were the music in me
splendid or how great were are you from?
"Tu no eras de Madrid verdad" translates to "You weren't from Madrid, right?" in English.
Periods mean eras centuries ages
eras
Eras was created in 1976.
There are 4 eras, and they are the Hadean, Archean, Proterozoic, and Phanerozoic eras.
Periods are subdivisions of geological eras.
Eras are divided into periods.
Eras is already plural. The singular is era.
Four eras. that is Cenozoic,mesozoic,paleozoic and precambrian