Last seen in:
- The Washington Post - Jan 3 2022
- L.A. Times Daily - Jan 3 2022
- The Guardian - Quick crossword No 16,051 - Oct 16 2021
- Newsday.com - Oct 18 2017
- BuzzFeed - Mar 31 2016
- Premier Sunday - King Feature Syndicate - Feb 7 2016
- L.A. Times Daily - Oct 14 2013
- L.A. Times Daily - Nov 8 2012
- Newsday.com - Oct 13 2011
- USA Today - Dec 22 2010
Related Clues:
- Eventful timeline divisions
- Significant timespans
- Significant spans
- Statistical concerns for pitchers
- Historical study
- They're sometimes named after presidents
- Serbians have no ISBN this time or the last
- Historic blocks of time
- Stats that are better when they're low
- Meaningful stretches
- Sections of a natural history museum, maybe
- History book sections, say
- Geologists' periods
- Paleozoic and Edwardian, e.g
- Long periods of history