20 August 1964, Thursday (07.08 according to the old style)
Church calendar for 20 August 1964
Saints commemorated
- Venerable Anthony (Putilov) of Optina 1795–1865
- Venerable Or of Thebaid IV в.; † ок. 390 (прожил ок. 90 лет)
- Venerable Martyr Dometius the Persian, of Syria IV век — †363
- Right-Believing Empress Irene of Athens ок. 752–803