Historical clue formulations

• Ones who wrote in the Ogham alphabet — 2013-03-31
• Highlanders — 2012-10-07
• Some Scots — 2012-10-01
• Iona College athletes — 2007-08-03
• Iona athletes — 2005-12-14
• Highlanders, e.g. — 2004-11-24
• Scottish Highlanders — 2004-10-21
• Highlanders — 2003-09-10
• Some Celts — 2002-12-28
• Iona College athletes — 2001-05-13
• Isle of Man residents — 1999-04-08
• Scottish Highlanders — 1998-09-21
• Highlanders — 1997-09-07
• Scottish Celts — 1997-05-26
• Highlanders — 1997-04-05