Historical clue formulations

• Beach shade — 2025-12-20
• Get bronze — 2024-06-20
• Lie on the beach — 2016-10-30
• Catch some rays — 2015-08-24
• ___ oil — 2013-07-05
• Get dark? — 2011-07-10
• Beachgoer's acquisition — 2009-01-26
• Summer shade — 2003-05-21