Historical clue formulations

• Equips for battle — 2022-02-09
• Puts a protective shield on — 2015-12-14
• Safeguards — 2008-09-21
• Equips with metal plating — 2005-02-15
• Puts in the mail? — 1997-12-13
• Protects, in a way — 1996-06-16
• Knights' clothes — 1996-01-01