Clue: Million-millennia period
Million-millennia period is a crossword puzzle clue that we have spotted 4 times. There are related clues (shown below).
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Recent usage in crossword puzzles:
- USA Today - Dec. 16, 2015
- Washington Post - March 5, 2015
- LA Times - Feb. 14, 2010
- Washington Post - Jan. 10, 2008