Historical clue formulations

• Egyptian coin — 2010-09-05
• Foreign currency unit — 2009-05-14
• Egyptian coin — 2007-07-15
• Part of a pound — 2007-01-20
• Mideastern money — 2002-10-11
• Coin of Cairo — 2001-11-25
• Part of a pound — 2001-07-14
• Mideast money — 2000-05-30
• Piece of eight — 1994-03-03