Historical clue formulations

• Supercapacitor unit — 2022-03-26
• Electrical unit — 2018-10-02
• Capacitance measure — 2013-08-11
• Measure associated with Leyden jars — 2011-01-08
• Unit of capacitance — 2009-08-16
• F on a physics exam — 2009-02-14
• Capacitance measure — 2007-01-07
• Measure of capacitance — 2004-08-26
• Unit of capacitance — 2000-07-05
• Electrical unit — 1998-07-19
• Unit of capacitance — 1997-03-06
• Unit of capacitance — 1997-02-02
• Its symbol is F — 1996-03-31
• Capacitor unit — 1994-09-28