Historical clue formulations

• Mentor of Anakin and Luke — 2023-08-23
• With 45-Down, Luke Skywalker's mentor — 2020-12-16
• "Star Wars" knight, informally — 2017-03-15
• Real name of Ben, in a sci-fi classic — 2017-01-27
• Luke's Jedi mentor — 2016-10-20
• Anakin's master in "Star Wars" — 2015-11-08
• "Star Wars" name — 2015-03-12
• First name in "Star Wars" — 2014-11-06
• With 39-Across, Jedi master first seen on 5/25/77 — 2012-05-23
• ___ Kenobi of "Star Wars" — 2009-12-28
• Alec played him in "Star Wars" — 2003-04-24
• Alec's "Star Wars" role — 1999-10-06