Historical clue formulations

• ___ de Boulogne (Parisian park) — 2015-11-09
• ___ de Boulogne (Paris park) — 2011-09-28
• ___ de Boulogne — 2003-11-09
• ___ de Bologne (park west of Paris) — 2000-07-12
• ___ de Boulogne (Paris park) — 1997-11-11
• Forest: Fr. — 1995-07-18
• _____ de Boulogne (Parisian park) — 1995-04-02