Historical clue formulations

• Ben who played the Wizard in Broadway's "Wicked" — 2016-11-20
• Tony winner for "Pippin" — 2015-06-14
• Ben who played the Wizard in "Wicked" — 2015-05-29
• Chicken George player in "Roots" — 2010-07-16
• Ben of "Pippin" — 2005-08-13
• Chicken George portrayer in "Roots" — 1997-05-03