| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| Introduced in 1582, this calendar wasn't adopted by the Brits until 1752 & by the Russians until 1918 | Gregorian | $400 | DJ | MARK YOUR CALENDARS | 2021-07-22 | #8449 | |
| It was only in 1923 that Greece switched over to this calendar | Gregorian | $300 | J | THE CALENDAR | 1991-01-11 | #1470 |