Historical clue formulations

• It's a stretch — 2022-09-22
• Tract — 2020-11-26
• Uninterrupted space — 2005-12-17
• Wide area — 2004-04-05
• Stretch — 1999-06-25
• Sweep — 1999-02-06
• Great Plains, e.g. — 1998-06-05
• Sweep — 1998-04-12
• Stretch — 1996-12-14