Historical clue formulations

• Córdoba's country: Abbr. — 2026-04-26
• World Cup champs of 1978, 1986 and 2022: Abbr. — 2025-09-17
• Home to Los Glaciares National Park: Abbr. — 2025-05-14
• "Evita" setting: Abbr. — 2023-01-04
• Uru. neighbor — 2022-11-17
• Lionel Messi's homeland: Abbr. — 2022-10-23
• Neighbor of Bolivia: Abbr. — 2022-03-17
• Pope Francis' homeland: Abbr. — 2020-08-02
• Where Che Guevara was born: Abbr. — 2019-12-17
• Birthplace of the tango: Abbr. — 2017-10-05
• S. Amer. land — 2017-06-18
• S. Amer. home of the tango — 2017-05-16
• Home of the Pampas: Abbr. — 2016-09-25
• Buenos Aires's land: Abbr. — 2015-11-30
• Land south of Bol. — 2015-11-11
• Bol. neighbor — 2015-07-21
• Evita's land: Abbr. — 2013-12-10
• Falklands War side: Abbr. — 2013-05-15
• O.A.S. member — 2013-04-20
• 1978 and 1986 World Cup winner: Abbr. — 2013-01-11
• Intl. soccer powerhouse — 2012-04-20
• Country sharing a long border with Chile: Abbr. — 2011-05-23
• The Iguazu Riv. forms part of its border — 2010-10-24
• 1978 World Cup winner: Abbr. — 2010-05-19
• Buenos Aires's country: Abbr. — 2010-01-18
• Land SW of Uru. — 2009-09-01
• Bol. neighbor — 2008-01-03
• Buenos Aires's land: Abbr. — 2006-03-20
• Where Santa Fé is: Abbr. — 2005-09-23
• Neighbor of Braz. — 2005-03-02
• Cape Tres Puntas locale: Abbr. — 2004-07-17
• Home of Jorge Luis Borges: Abbr. — 2004-03-05
• Big World Cup power: Abbr. — 2004-01-29
• Part of S.A. — 2002-01-25
• Notable W.W. II neutral: Abbr. — 2000-10-14
• S.A. country — 1999-12-25
• "Oh, no!" — 1999-05-29
• Notable W.W. II neutral: Abbr. — 1998-12-12
• Country on the Atl. — 1998-09-05
• Neighbor of Chile: Abbr. — 1998-06-09
• Where the Paraná River is: Abbr. — 1997-10-05
• S.A. republic — 1997-09-17
• S.A. country — 1997-08-31
• Evita's country: Abbr. — 1996-10-07
• S.A. land — 1995-12-06
• Neighbor of Uru. — 1995-11-15
• O.A.S. member — 1995-06-09
• Uru. neighbor — 1994-04-29
• Patagonian locale: Abbr. — 1994-02-05
• La Plata locale: Abbr. — 1994-02-04