| Clue | Source | Date |
|---|---|---|
| It's studied in U.S. schools | USA Today | 27 Feb 2020 |
| In 9 across, pastime appeals to students from Washington to Trump, for instance | Irish Times Crosaire | 29 May 2017 |
| High school subject | Universal | 14 Aug 2016 |
| High school subject | ||
| High school subject | ||
| Subject in which 36-Across may be studied | ||
| Domain of one of Washington's Smithsonian museums | ||
| High school subject | ||
| High school subject | ||
| "Jeopardy!" category | ||
| National record | ||
| Library of Congress specialty. |