Historical clue formulations

• Electrical impulse transmitters — 2026-09-20
• They're impulsive — 2023-12-16
• Neural transmitters — 2023-09-23
• Parts of nerve cells — 2019-07-12
• Cellular transmitters — 2016-04-15
• Nerve cell conductors — 2015-11-18
• Conductors of impulses from nerve cells — 2013-10-21
• They're impulsive — 2004-06-19
• Neural transmitters — 2003-09-09
• Certain transmitters — 2003-08-19
• Neurites — 2001-06-07
• Nerve cell appendages — 2000-06-09
• Impulse transmitters — 1997-11-04
• Neural transmitters — 1997-01-05
• Nerve fibers — 1996-12-15