Historical clue formulations

• Like the women in a famous Rubens painting — 2013-10-24
• River on the Texas/Louisiana border — 2012-01-17
• Texas/Louisiana border river — 2011-12-21
• Ancient Italian — 2009-04-05
• Texas/Louisiana border river — 2004-05-22
• Ancient Italian — 2004-02-01
• Texas/Louisiana border river — 2001-12-27
• Texas-Louisiana border river — 1998-03-11