era (EN)

noun

noun “era”

1. a span of time that is usually longer than a year
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   The Victorian era is known for its significant advancements in industry and culture.
2. in geology, a long duration of time, ranging from tens to hundreds of millions of years, that is part of an eon and divided into shorter periods
   The Mesozoic era, known for the reign of dinosaurs, lasted about 180 million years before giving way to the Cenozoic era.