Crossword Genius

Historical division (5)

Ross

I believe the answer is:

epoch

(Other definitions for epoch that I've seen before include "Period of time in history" , "Long period of time" , "Significant period" , "Period of notable events" , "extended period" .)

I've seen this clue in The Sun.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.