Last seen in:
- The Washington Post Sunday - Jul 4 2021
- Premier Sunday - King Feature Syndicate - Jul 5 2015
- Irish Times (Simplex) - Jan 3 2014
- Irish Times (Simplex) - Aug 5 2013
- Irish Times (Simplex) - May 15 2013
- Wall Street Journal - Dec 14 2012 - December 14, 2012 - Hollywood Gift Exchange
- Irish Times (Simplex) - Jan 4 2012
- Canadiana - Sep 12 2011
- Universal - Jun 9 2011
- Irish Times (Simplex) - Aug 4 2009
Related Clues:
- Topic for debate
- Billion-year time period
- One billion years, geologically
- Point of disagreement
- Humongous span
- Annoying wait, facetiously
- Untold eras
- Inconceivable stretch
- It may be on the agenda
- Fraction of a tick: Abbr.
- Very long interval
- Long while
- Extremely long stretch
- Indefinitely long period
- Geologic span