| Clue | Source | Date |
|---|---|---|
| Research into human communities (6,7) | ||
| Field including history, and a hint to the ends of the answers to starred clues | The Washington Post | 29 Nov 2020 |
| Field including history, and a hint to the ends of the answers to starred clues | LA Times Daily | 29 Nov 2020 |
| History, philosophy and so on | New York Times | 06 Oct 2017 |
| History, philosophy and so on | ||
| "I hang out with my friends all the time, so I must be an expert in ___" |