Historical clue formulations

• Series whose first seven members are sung to the starts of 18-, 26-, 41- and 54-Across — 2018-10-10
• Kindergarten learning — 2014-05-12
• It breaks the "I before E" rule — 2012-03-16
• See 64-Across — 2006-09-23
• 33-Down + 42-Across — 2002-06-23
• Kind of soup — 2000-07-19
• Cast of characters? — 1998-07-31
• Kind of soup — 1996-11-23