Historical clue formulations

• Beauty pageant since 1952 — 2023-01-01
• Pageant whose 1986 runner-up was Halle Berry — 2018-11-25
• Contest once hosted by Bob Barker — 2018-03-25
• One who goes on to try to conquer the Universe? — 2016-10-22
• 46-Across wearer since 1952 — 2015-05-15
• Halle Berry was once runner-up for this — 2014-08-31
• Wearer of a crown since 1952 — 2012-03-22
• Title first awarded in 1952 — 2000-08-25