| 2026-07-05 | Conflict sparked by an archduke's assassination: Abbr. |
| 2025-08-09 | Historical event that acquired its name almost two decades after it ended, in brief |
| 2025-07-24 | Era in which daylight saving was introduced as a way to conserve energy, in brief |
| 2023-11-20 | Conflict of 1914-18, in brief |
| 2023-11-18 | Setting for the film "1917," familiarly |
| 2023-08-13 | "All Quiet on the Western Front" setting, for short |
| 2023-07-07 | Backdrop for the 2019 film "1917": Abbr. |
| 2022-01-01 | Setting of the Robert Graves memoir "Good-bye to All That," in brief |
| 2021-12-23 | Historical event given its current name in 1939: Abbr. |
| 2021-10-17 | Conflict in 2017's "Wonder Woman," in brief |
| 2021-03-31 | Conflict that ended at 11:00 on 11/11 |
| 2021-02-08 | Conflict in 2017's "Wonder Woman," in brief |
| 2020-09-06 | It ended on Nov. 11, 1918 |
| 2020-08-09 | Conflict during which the Lusitania was sunk: Abbr. |
| 2019-02-21 | "A Farewell to Arms" subj. |
| 2019-02-05 | 1914-18 conflict, for short |
| 2018-04-06 | Teens fight, for short |
| 2017-10-29 | The U.S. joined it in 1917: Abbr. |
| 2017-08-24 | "A Farewell to Arms" setting, briefly |
| 2017-01-22 | Chapter in early 20th-century history: Abbr. |
| 2015-01-25 | "Over There" subj. |
| 2014-09-08 | 1910s conflict: Abbr. |
| 2013-03-23 | What the U.S. joined in Apr. 1917 |
| 2013-02-19 | Conflict for which "Over There" was written: Abbr. |
| 2009-10-21 | A.E.F.'s conflict |
| 2008-01-28 | The 1919 Treaty of Versailles concluded it: Abbr. |
| 2006-04-05 | It ended on Nov. 11 |
| 2005-09-11 | La Belle Époque ender: Abbr. |
| 2005-07-26 | It ended at 11:00 on 11/11 |
| 2001-07-08 | Conflict that ended at 11:00 on 11/11 |
| 1999-05-21 | When tank warfare began: Abbr. |
| 1999-01-10 | Old Eur. conflict |
| 1996-09-30 | A.E.F. conflict |
| 1995-03-26 | Teens conflict: Abbr. |