Historical clue formulations

• Abolitionist senator Charles — 2024-06-19
• Fort ___ (where Billy the Kid was killed) — 2019-09-15
• Gordon ___ (Sting's real name) — 2013-04-17
• Sting's last name — 2008-04-20
• Gordon ___ a k a Sting — 2005-10-14
• Abolitionist senator Charles — 2002-11-03
• Fort ___ (where Billy the Kid was gunned down) — 1998-02-08