Historical clue formulations

• People for whom a state is named — 2023-04-22
• Midwest tribe — 2020-09-17
• Midwest tribe — 2014-11-26
• Early Great Plains residents — 2013-01-01
• Chiwere speakers — 2012-04-13
• Foxes' neighbors, once — 2011-06-04
• Midwestern tribe — 2008-05-13
• Midwestern tribe — 2007-05-18
• Offshoot of the Winnebagos — 2007-02-06
• Midwest tribe — 2003-11-30
• Some Midwestern Indians — 1999-12-05
• Midwest Indians — 1996-01-23