Historical clue formulations

• Dark hair and a warm smile, for two — 2021-08-15
• Characteristics — 2013-01-14
• Blue eyes and blond hair — 2012-10-14
• Things determined by 104-Across — 2011-08-07
• Characteristics — 2010-04-13
• Genes govern them — 2006-11-14
• Blond hair, hot temper, etc. — 2003-01-29
• Parts of a personality profile — 2000-05-14