Historical clue formulations

• One of the detectives in "Lethal Weapon" — 2018-04-21
• Bobby who lost 1973's Battle of the Sexes tennis match — 2014-09-22
• 1939 Wimbledon winner — 2008-03-29
• Old tennis star Bobby — 2006-02-02
• Starring role in "Lethal Weapon" — 2005-04-14
• Gibson's "Lethal Weapon" role — 2004-09-24
• Washington bank name since 1840 — 2001-04-01
• Bobby who lost to Billie Jean — 2000-11-21