Last seen in:
- L.A. Times Daily - Jun 16 2025
- L.A. Times Daily - Jul 22 2024
- L.A. Times Daily - Dec 4 2022
- Wall Street Journal - Jul 27 2020 - Selected Anthology
- Newsday.com - Jan 14 2018
- The Washington Post Sunday - Nov 26 2017
- The Washington Post - May 10 2016
- The Washington Post - Mar 17 2016
- Universal - Feb 7 2013
- Newsday.com - Mar 19 2009
Related Clues:
- Iron and Stone
- Matures, as wine
- Distinct time spans
- Geological epochs
- President's tenures, so to speak
- Significant periods of history
- Some baseball stats
- Remarkable times
- Middle __
- Mesozoic and Cenozoic
- Geology periods
- Parts of eons
- Memorable periods in history
- Specific times in history
- Geological periods