Historical clue formulations

• Franchise with the most victories in N.F.L. history — 2020-05-08
• Campout dangers — 2012-01-07
• Some circus performers — 2011-03-18
• Grizzlies, e.g. — 2010-07-20
• Really tough tasks — 2005-06-03
• Puts up with — 2001-12-03
• Chicago team, with "Da" — 1996-06-25
• Grizzlies — 1996-01-15
• Baylor athletes — 1995-01-22