la era de

the era of

→ el
phrase Rare #33,713
the era of Used to refer to a period of time associated with something. The article may change to match the noun that follows, as in “el era” is not used; “la era” is the set phrase.
SP: La era de los dinosaurios terminó hace mucho tiempo.
EN: The era of the dinosaurs ended a long time ago.

Se acabó la era de los Hombres.

The era of Men is over.

— El señor de los anillos: El retorno del rey (2003)

La era de los elfos toca su fin.

The age of the elves is coming to an end.

Estamos en la era de la energía nuclear.

We are in the age of nuclear energy.

La era de aventuras aéreas terminó.

The era of aerial adventures is over.

— Porco Rosso (1992)

Todos ellos vivieron antes de la era de Google.

They all lived before the Google era.

— El agente secreto (2025)

La era de la gran tristeza se acabó.

The era of great sadness is over.

— Avatar (2009)

Nosotros estamos viviendo en la era de la energía nuclear.

We are living in the age of nuclear energy.

Entramos en la era de Virgo.

We entered the Age of Virgo.

— Delicatessen (1991)

El tigre dientes de sable se extinguió durante la era de hielo.

The saber-toothed tiger became extinct during the ice age.

La era de los elfos terminó.

The age of the elves is over.