| Clue | Source | Date |
|---|---|---|
| 200th anniversary | The Telegraph Cross Atlantic | 17 Jun 2025 |
| Event that Australia celebrated in 1988 (12) | ||
| Two-hundredth anniversary | ||
| 200th anniversary celebration (12) | ||
| What Australia marked on January 26, 1988 | The Times Specialist Sunday | 06 Aug 2023 |
| 7/4/1976 celebration | ||
| 7/4/1976 celebration | ||
| 1976, e.g. | ||
| 1976 | ||
| Long-delayed celebration. |