Historical clue formulations

• Actor William — 2014-01-05
• Comedian/rapper Williams — 2012-12-14
• Nicky of "Boston Public" — 2007-05-04
• Actor William of "The Greatest American Hero" — 2006-11-20
• William of TV's "The Greatest American Hero" — 2004-08-07
• "The Greatest American Hero" star — 2000-02-06