| Clue | Source | Date |
|---|---|---|
| Two-year stretches | Wall Street Journal | 24 Jun 2021 |
| Two-year periods | The Washington Post | 14 Feb 2021 |
| Two-year periods | LA Times Daily | 14 Feb 2021 |
| Representatives' term lengths | New York Times | 27 Dec 2020 |
| Sound purchase Annie reassembled for two-year periods | ||
| Two-year periods | ||
| Stretches between Ryder Cups | ||
| Two-year periods | ||
| Two-year periods | ||
| Congressional terms, e.g. | ||
| Two-year periods | ||
| Periods between Winter and Summer Olympics | ||
| Two-year periods | ||
| Two-year stretches |