Historical clue formulations

• Saint associated with the Russian alphabet — 2022-04-15
• Saint with an alphabet named after him — 2015-08-23
• Saint for whom the Russian alphabet is named — 2007-08-26
• Stage and screen actor ___ Ritchard — 2001-10-15
• Science fiction writer ___ M. Kornbluth — 1999-12-03
• Saint a k a Apostle to the Slavs — 1996-09-22
• Apostle to the Slavs — 1995-11-29