Historical clue formulations

• Law of La Mancha — 2026-03-14
• Willy ___, pioneering writer on rocketry — 2021-06-29
• Science writer Willy — 2017-10-04
• ESPN broadcaster Bob — 2017-08-17
• Willy ___, pioneering writer on rocketry — 2014-06-06
• ESPN broadcaster Bob — 2014-04-20
• Science writer Willy — 2013-01-22
• Willy who wrote "The Conquest of Space" — 2013-01-20
• Willy who wrote "The Conquest of Space" — 2010-04-25
• Law, in Lima — 2009-10-25
• Science writer Willy — 2009-07-12
• Writer Willy who popularized spaceflight — 2007-12-30
• Science writer Willy — 2006-06-27