Historical clue formulations

• "Miracle on Ice" foe, for short — 2026-08-25
• The Beatles' "Back in the ___" — 2026-06-16
• Hammer-and-sickle land, for short — 2026-05-29
• Country that boycotted the 1984 Olympics — 2026-05-07
• The Beatles' "Back in the ___" — 2026-03-02
• Losing team in the "Miracle on Ice" — 2026-02-14
• Old map inits. — 2025-10-29
• Bygone world power, for short — 2025-07-29
• See 36-Across — 2025-07-10
• It once shared a land border with 16 countries — 2025-03-09
• Home to Leningrad, for short — 2024-11-27
• Locale of a 1991 coup attempt by the Gang of Eight, in brief — 2024-11-01
• Old map letters — 2024-08-03
• Locale in a Beatles song — 2024-04-19
• Cold War power, for short — 2024-03-19
• It's written as "C.C.C.P." in Cyrillic — 2024-01-31
• Grp. that launched 41-Across — 2023-11-02
• Former governor of Georgia? — 2023-10-15
• It broke up on Dec. 26, 1991 — 2023-08-21
• One-sixth of the world's ground surface until 1991, in brief — 2023-06-29
• Old org. for Armenia — 2023-04-06
• U.N. member until 1991 — 2023-02-09
• Cold War power, in brief — 2022-12-20
• Map inits. until 1991 — 2022-10-09
• Old map inits. — 2022-08-14
• Federation formed in 1922, for short — 2022-04-01
• Losing team in the "Miracle on Ice" hockey game — 2022-03-09
• Red states, once, in brief — 2022-02-18
• Leningrad's land, for short — 2021-11-16
• It raised a major red flag — 2021-08-07
• Founding member of the U.N. Security Council — 2021-07-29
• Name in a noted '90s breakup — 2021-07-17
• Red state, once, for short — 2020-07-07
• Geographical inits. until 1991 — 2020-06-30
• Red states, once — 2020-05-23
• Founding member of the U.N. Security Council, for short — 2020-04-26
• Georgia was once a part of it — 2020-02-14
• The Beatles' "Back in the ___" — 2019-10-30
• Red letters? — 2019-08-25
• State led by Lenin, in brief — 2019-07-15
• Land in a Beatles song — 2018-09-26
• 1922-91 initials — 2018-08-09
• American ally in W.W. II — 2018-07-19
• Country in a Beatles title — 2018-06-28
• Red letters? — 2018-04-25
• America's Cold War foe, for short — 2016-09-05
• Space race competitor, for short — 2016-05-23
• Country in a classic Beatles title — 2016-03-29
• 1991 breakup newsmaker — 2015-09-13
• One 29-Across of the U.S. in W.W. II — 2015-06-09