Historical clue formulations

• Knoxville sch. — 2018-01-24
• Sch. in Knoxville — 2017-01-15
• Knoxville sch. — 2015-09-08
• Knoxville sch. — 2013-03-31
• Vols' school — 2011-07-17
• Knoxville sch. — 2009-07-29
• Knoxville sch. — 2006-09-24