Historical clue formulations

• Half of a Polynesian locale — 2022-11-19
• Tora ___, Afghanistan — 2021-07-11
• When doubled, a Pacific paradise — 2021-03-23
• When repeated, a Polynesian getaway — 2017-06-11
• When repeated, a Pacific tourist destination — 2017-01-08
• When doubled, a South Seas island — 2016-11-22
• When doubled, a South Pacific isle — 2015-12-01
• When doubled, island near Tahiti — 2013-01-27
• Tora ___ (Afghan area) — 2012-10-23
• When repeated, a Polynesian island — 2012-03-13
• When doubled, a 19-Across — 2011-06-02
• When doubled, a Polynesian island — 2010-08-25
• Adriatic wind — 2009-09-12
• When doubled, a Pacific island — 2006-08-01
• When repeated, a South Seas getaway — 2006-01-01
• When repeated, part of French Polynesia — 2002-04-21
• When repeated, an idyllic place — 1999-12-25
• When repeated, an island NW of Tahiti — 1999-11-21
• When repeated, one of the Society Islands — 1998-05-09
• Cold Adriatic wind — 1997-02-09