Historical clue formulations

• Gessen who wrote the 2012 Putin biography "The Man Without a Face" — 2013-04-13
• One of the sisters in Chekhov's "Three Sisters" — 2010-06-03
• "Three Sisters" sister — 2010-04-17
• Sister in "Three Sisters" — 2002-11-08
• One of Chekhov's "Three Sisters" — 1996-08-06