15 May 1964, Friday (02.05 according to the old style)
Church calendar for 15 May 1964
Saints commemorated
- Hierarch Athanasius the Great of Alexandria ок. 297 — †373
- Equal to the Apostles, Tsar Boris (Michael), Tsar of Bulgaria ок. 835 — †907
- Hierarch St. Reticius, Bishop of Autun ок. 310–334
- Venerable Wiborada of St. Gallen втор. пол. IX века — 926