Historical clue formulations

• Observance celebrating a decision actually made on July 2 — the date when John Adams predicted it would be celebrated — 2025-12-24
• 1996 blockbuster with the tagline "Don't make plans for August" — 2011-05-20
• Highest-grossing film of 1996 — 2009-07-04
• Highest-grossing movie of 1996 — 2004-11-12
• When many people have cookouts — 2002-07-03
• Firecrackers go off on it — 2001-12-21
• Fourth celebration — 1995-05-27
• What we observe on July 4 — 1994-07-04