Historical clue formulations

• Texas city that's home to Frito-Lay — 2024-03-10
• City served by the DFW Airport — 2023-04-07
• City that's headquarters for Pizza Hut and J. C. Penney — 2013-10-19
• Texas city that's headquarters for J. C. Penney — 2013-06-27
• City whose name is Spanish for "flat" — 2013-01-26
• Part of the Dallas-Fort Worth metroplex — 2009-11-28
• Texas city just north of Dallas — 2008-09-22
• Dallas suburb — 2007-03-08
• Dallas suburb — 2006-04-09
• National headquarters of J.C. Penney, Dr Pepper and Frito-Lay — 2006-01-20
• Dallas suburb — 2001-05-22
• City north of Dallas — 2000-05-01
• City in northeast Texas — 1998-09-26
• City in north Texas — 1996-11-18
• Dallas suburb — 1996-05-26