Historical clue formulations

• 1920s-'30s skating legend Sonja — 2020-05-30
• Sonja on the ice — 2019-12-12
• Skating gold medalist Sonja — 2019-01-15
• Figure skater Sonja — 2017-11-26
• Skater on the Hollywood Walk of Fame — 2014-11-02
• Skater Sonja who won three Olympic gold medals — 2014-09-08
• "Sun Valley Serenade" skater — 2014-05-21
• Three-time Olympic skating gold medalist — 2013-07-26
• Skating gold medalist of 1928, 1932 and 1936 — 2013-02-02
• Skater Sonja — 2012-11-21
• "Iceland" star, 1942 — 2012-06-08
• "Thin Ice" star Sonja — 2010-04-25
• Old-time Norwegian skating sensation — 2009-07-21
• Olympic skating champ of 1928, 1932 and 1936 — 2009-04-05
• Skater-turned-actress Sonja — 2008-10-28
• "Sun Valley Serenade" star, 1941 — 2008-05-22
• "Iceland" star, 1942 — 2006-08-25
• 1920's-30's Winter Olympics star — 2004-05-16
• Figure skater known as "The Golden Girl" — 2002-01-13
• "Iceland" star — 2001-08-11
• Skating name of fame — 2000-06-02
• Skater Sonja — 1999-11-03
• Skater Sonja — 1999-03-03
• "Iceland" star — 1998-05-03
• 1928, 1932 and 1936 Olympic gold medalist — 1998-01-22
• Actress-skater Sonja — 1997-11-04
• Ice star Sonja — 1995-09-25
• Skater Sonja — 1994-05-31
• Star of "Sun Valley Serenade" — 1994-03-19
• Three-time skating gold medalist — 1994-03-08