Historical clue formulations

• Dark half of a famous duality — 2026-03-01
• Yang's counterpart — 2025-03-17
• Yang's counterpart — 2024-06-25
• Yang's partner — 2024-04-16
• Yang's counterpart — 2022-08-16
• The dark side — 2022-02-13
• Principle of complementary duality — 2022-01-19
• Yang's partner — 2021-07-27
• Half of a Chinese symbol for dualism — 2021-05-11
• Dark side — 2021-02-28
• Dark half — 2020-10-23
• Yang's partner — 2020-06-02
• Yang's counterpart — 2020-01-20
• Yang's opposite — 2019-12-01
• Feminine side — 2019-11-10
• Dark force, in Chinese philosophy — 2019-07-09
• Yang's opposite — 2018-11-06
• Yang's partner — 2018-07-23
• Dark side — 2018-03-03
• The dark side — 2017-11-26
• The dark side — 2017-08-27
• Counterpart to 22-Across — 2016-11-19
• Dark force — 2016-09-18
• Dark half of a Chinese circle — 2015-09-02
• Dark side — 2015-02-13
• Yang's go-with — 2014-10-01
• Dark side — 2013-09-13
• Female half — 2013-05-23
• The dark side — 2012-12-01
• Moon, in Chinese — 2012-08-11
• Yang's opposite — 2012-06-13
• Yang's counterpart — 2012-01-24
• One of two opposing forces — 2011-07-08
• ___ and yang — 2011-07-04
• Yang's go-with — 2011-01-17
• Yang's counterpart — 2010-11-01
• The dark side — 2010-04-15
• Dark force — 2010-04-10
• Half of the tai chi symbol — 2010-02-23
• Dark half of a Chinese circle — 2009-07-29
• Feminine side — 2009-07-16
• Part of a philosophical dichotomy — 2008-11-07
• Feminine side — 2008-07-09
• The dark side — 2008-06-29
• Yang's counterpart — 2007-02-28
• Feminine side — 2006-07-19
• Feminine side — 2006-07-14
• Yang's counterpart — 2006-06-12
• Yang's counterpart — 2006-05-29
• Dark side of China — 2005-01-14