5 · en
Short, simple sentences with “era”, suitable for children and primary/elementary school, with common expressions and related words. You'll also find examples for middle and high school.
The prehistory of humanity is a dark and unexplored era.
Ammonites are a fossil species of marine mollusks that lived during the Mesozoic era.
The time traveler found himself in an unknown era, searching for a way to return to his own time.
The history of art spans from cave paintings to contemporary works, and reflects the trends and styles of each era.
The Cretaceous period was the last period of the Mesozoic era and lasted from 145 million years ago to 66 million years ago.
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