Historical clue formulations

• "Above the ___, as high as heaven itself?": Shak. — 2025-08-09
• What nephology is the study of — 2022-03-01
• Symbols of impending trouble — 2013-01-11
• See 1-Across — 2011-04-05
• They keep people off beaches — 2000-02-10
• Sun blockers — 1997-07-14