Era

Bilis Manger claimed that he could walk through eras as Gwen Cooper would walk into another room. (TV: End of Days)

The Rassilon Era and Humanian Eras were examples of eras in the wider universe. (TV: Doctor Who, AUDIO: Neverland)

The Silurian era was an era on the planet Earth. (TV: Doctor Who and the Silurians)

Historians considered the Renaissance period, which spanned from the 14th to the 17th century, to be the time during which the medieval era transitioned to the modern era, though the Twelfth Doctor noted that this view depended on what one meant by "modern". (PROSE: A History of Humankind ^[+]Loading...["A History of Humankind (novel)"])

The Ninth Doctor cited the Fourth Great and Bountiful Human Empire as an era with "fine food" and "good manners". (TV: The Long Game)