PIDAY
| Date | Clue |
|---|---|
| 2024-07-24 | 3/14 |
| 2024-03-14 | An irrational reason to celebrate? |
| 2023-09-19 | March 14 observance that might be celebrated with dessert in math class |
| 2021-07-09 | Irrational thing to celebrate? |
| 2020-12-10 | A constant celebration? |
| 2020-07-02 | March 14 |
| 2018-03-21 | Annual math celebration |
| 2016-05-01 | March 14, to math lovers |
| 2012-03-14 | Mid-March celebration ... or a hint to the starts of 18-, 25-, 44- and 57-Across |
| 2007-03-14 | March 14, to mathematicians |