Historical clue formulations

• Gridiron group rebooted in 2020 — 2023-02-20
• Athletic org. with a 2020 reboot — 2022-11-21
• Former gridiron org. for the Memphis Maniax and Orlando Rage — 2020-11-11
• Sports org. with the New York Guardians and Seattle Dragons — 2020-02-20
• Defunct gridiron org. — 2017-04-04
• 2001 sports flop, for short — 2015-06-12
• Sports org. of the early 2000s — 2013-01-06
• Bygone sports org. for which Minnesota governor Jesse Ventura was a TV analyst — 2012-04-25
• Sports org. that lasted only one season — 2011-05-12
• Former sports org. with the teams Hitmen and Rage — 2010-09-16
• Former grid org. — 2006-05-11