Historical clue formulations

• One way to learn — 2022-05-08
• Unconscious assimilation — 2020-03-26
• You might gain knowledge through this — 2020-02-02
• Effortless assimilation — 2019-06-09
• Learn by ___ — 2012-08-29
• Absorption process — 2012-08-22
• One way to get through a wall — 2008-03-21
• Gradual absorption method — 2004-08-02
• Learning method — 2002-11-17
• One learning method — 1999-03-14