The phrase "an era between" is correct and usable in written English.
It can be used to describe a specific time period that exists between two other defined periods or events.
Example: "The Renaissance was an era between the Middle Ages and the modern age, marked by significant cultural and intellectual advancements."
Alternatives: "a period between" or "a time frame between".
His sympathy and affection for artists fighting to make their way from the margins to the center and for an era stuck between the parentheses of history comes through on every page.
"I do not think that such a short letter heralds a new era between the Muslim Brotherhood and the Jewish people or the West or democracy," Mr. Mazel said.
In a pointed commentary before Xi's arrival in Britain, Global Times said in an editorial: "Apparently the concept of a 'golden era' between the two countries has made some people uncomfortable.
I'm trying to be respectful and caring I hope you felt it was a respectful and caring interview in a new era of politics, and a new era between you and I".
While Colonel Qaddafi's recent decision to rid his country of programs to develop nuclear and other unconventional weapons may usher in a new era between Libya and the West, a number of European nations also expect him to make a strong gesture on human rights in Benghazi.
Anger over what is being interpreted as impudent American demands has been building, fanned by other recent frictions — plans for a bigger American Embassy, the use of an American private security firm to protect American diplomats — in what was supposed to be a new era between the United States and Pakistan under President Obama.
Four years after declaring a new era between the two former cold war adversaries and after some early successes in forging fresh cooperation, Mr. Obama concluded that the two sides had grown so far apart again that there was no longer any point in sitting down with President Vladimir V. Putin.
Can musical diplomacy usher in a new era between North Korea and the U.S.? Can the jazz of Gershwin and the culturally-poignant "Arirang" move our nations to a heightened level of diplomacy?
The extraordinary display of cross-community unity at Stormont marked a symbolic end to the Troubles and opened an era of cooperation between former enemies.
