Church calendar for 21 December 1917

Saints commemorated

• Apostle Cephas I век
• Blessed, Fool for Christ Cosmas Of Verkhoturye 1652 — †1679
• Apostle of the Seventy Caesar, Bishop of Dyrrhachium I век
• Apostle of the Seventy Cephas, Bishop of Iconium I век
• Venerable Patapius of Thebes (of Constantinople) IV—VII вв. (датировка спорна)
• Apostle of the Seventy Sosthenes, Apostle of the Seventy, Bishop of Colophon I век
• Apostle Tychicus of the Seventy, Bishop of Colophon I век