Historical clue formulations

• Number with a 120-Across, mathematically — 2026-09-20
• Safe place to stand on a diamond — 2026-04-14
• Corner of a diamond — 2025-11-23
• Core supporters — 2025-10-25
• First, second or third — 2025-09-09
• Fundamental unit in logarithmic equations — 2025-07-11
• Opposite of 1-Across — 2025-05-22
• One of four on a diamond — 2025-04-21
• Home plate is the "fourth" one — 2025-01-08
• Foundation — 2024-01-02
• Foundation — 2023-10-21
• Two, for the binary number system — 2023-09-07
• The "x" in x2 — 2023-08-13
• Headquarters — 2023-05-24
• Headquarters — 2022-11-12
• Bag for a diamond — 2022-07-24
• It turns red litmus paper blue — 2022-01-25
• Command center — 2021-11-07
• Reliable supporters — 2021-07-25
• Acid's opposite — 2021-02-16
• It might be stolen in full view — 2020-09-29
• Core political supporters — 2020-03-31
• It's halfway around a diamond — 2019-06-23
• Politician's core support — 2019-06-23
• Acid's opposite — 2019-01-15
• One's most ardent supporters — 2018-12-30
• Core political support — 2018-11-23
• Lead-in to line — 2018-08-26
• First, second or third — 2018-08-14
• Military post — 2018-07-09
• Word before metal or instinct — 2018-01-16
• Runner's place — 2017-06-10
• Part of a trophy — 2016-04-24
• ___ 10 — 2016-04-16
• Political group unlikely to be swayed — 2015-10-28
• Place to lead a private life? — 2015-08-21
• Plinth, for a pillar — 2015-08-01
• The "5" of 5^2 — 2015-05-21
• Two, for binary arithmetic — 2015-02-10
• Diamond bag — 2014-12-23
• Sea of Tranquillity, for the Apollo 11 astronauts — 2014-09-01
• Like metals used by 1-Across — 2014-02-22
• Location in a game of tag — 2014-01-08
• General headquarters? — 2012-10-14
• First, second, third or home — 2012-05-08
• Acid neutralizer — 2012-03-14
• First, second, third or home — 2011-02-14
• Corner of a diamond — 2011-01-25
• It's high on the pH scale — 2010-12-01
• First, second, third or home — 2010-09-06