Historical clue formulations

• Where to find the ends of 17-, 27-, 50- and 65-Across — 2018-10-08
• 1970 disaster flick — 2009-03-15
• Many a taxi's destination — 2004-03-17
• Theme of this puzzle — 2003-11-17
• La Guardia or LAX — 2001-08-20
• Oscar-winner for 62-Across, 1970 — 2000-10-10
• Heathrow, e.g. — 1995-01-16