Historical clue formulations

• Slain king in "Macbeth" — 2025-01-12
• Scottish king murdered by Macbeth — 2024-03-19
• Big name in yo-yos — 2019-02-08
• "Macbeth" king — 2013-09-22
• Company behind the 1960s yo-yo craze — 2011-08-19
• Toy company behind yo-yos — 2011-02-27
• Victim of Macbeth — 2007-10-10
• Classic yo-yo maker — 2003-11-30
• Classic yo-yo maker — 2001-10-22