Historical clue formulations

• x or y — 2026-08-09
• Follower of "x" or "y" — 2026-06-21
• Grid line — 2026-04-26
• x or y — 2026-01-13
• X or Y, often — 2025-11-22
• Enemy alliance of W.W. II — 2025-02-20
• Center of a revolution — 2025-02-01
• x or y, on a graph — 2025-01-27
• x, y or z — 2024-12-12
• Alliance of powers — 2024-11-24
• "x" or "y" number line, in graphing — 2024-02-26
• Plot line? — 2024-02-13
• ___ & Allies (board game) — 2023-07-09
• Graph line — 2023-05-23
• Turning point — 2022-09-16
• Line through two poles — 2021-11-21
• x or y, in math class — 2021-11-10
• Graph line — 2021-11-03
• x, for one — 2021-10-21
• Graph component — 2021-08-05
• x, y or z, in geometry — 2021-08-02
• x or y, in plane geometry — 2021-02-02
• Center of rotation — 2020-12-22
• Pole position? — 2020-08-22
• What the abscissa and ordinate are measured from — 2020-07-26
• x, y or z — 2020-07-18
• Enemy alliance in W.W. II — 2020-03-30
• Pivot point — 2020-01-23
• x or y, on a graph — 2019-12-23
• ___ & Allies (classic board game) — 2019-07-30
• Line of symmetry — 2019-06-13
• Japan was a member of it — 2017-07-15
• x or y — 2017-03-23
• Graph line — 2017-02-06
• W.W. II foe — 2017-01-16
• Quadrant separator — 2016-10-07
• y, for one — 2016-05-26
• W.W. II foe — 2015-06-09
• Pivot point — 2015-05-05
• Pole connector — 2014-03-20
• Turning point — 2013-09-08
• 1940's ___ Pact — 2013-04-26
• Line of symmetry — 2012-12-05
• Line of rotation — 2012-11-26
• Pivotal line — 2012-09-25
• W.W. II enemy — 2012-07-16
• Germany, Italy and Japan, in W.W. II — 2012-07-02
• Revolutionary line — 2011-10-09
• W.W. II foe, with "the" — 2011-08-08
• x or y line on a graph — 2011-06-13