21 July 1900, Saturday (08.07 according to the old style)
Kazan Icon of the Theotokos (summer)
Saints commemorated
- Venerable Helena Diveevo 1805 — 1832
- Blessed Blessed Procopius of Ustyug, Fool-for-Christ † 1303
- Great Martyr Great Martyr Procopius of Caesarea (Scythopolis) † 303
- Hieromartyr Kilian ок. 640 — †689