Historical clue formulations

• Jayhawks' home: Abbr. — 2017-03-29
• Nebr. neighbor — 2014-07-31
• Home of McConnell A.F.B. — 2011-06-04
• Where Manhattan is: Abbr. — 2009-02-06
• Manhattan's locale: Abbr. — 2001-04-06
• Okla. neighbor — 1997-04-15
• It's north of Okla. — 1994-01-02