Historical clue formulations

• Ralph who wrote the novel "Juneteenth" — 2025-03-21
• "Invisible Man" author Ralph — 2023-06-07
• National Medal of Arts recipient whose novel "Juneteenth" was published posthumously — 2021-10-14
• 20th-century novelist who shared first and middle names with poet Emerson — 2016-03-05
• National Book Award-winning novelist named after Emerson — 2011-08-06
• Ralph who wrote "Invisible Man" — 2009-01-19
• Ralph who wrote "Invisible Man" — 2008-08-04
• "Invisible Man" novelist — 1998-10-09