Historical clue formulations

• ___-faire — 2022-12-10
• ___-faire (social adeptness) — 2021-05-30
• ___-faire — 2020-08-16
• ___-faire — 2020-01-26
• French erudition — 2016-04-02
• To know, in Nantes — 2015-03-13
• Knowledge: Fr. — 2014-08-02
• ___-faire — 2006-09-20
• ___-faire — 2004-02-02
• Knowledge, in France — 1997-09-21