August 19 (Eastern Orthodox liturgics)
August 18 - Eastern Orthodox Church calendar - August 20
All fixed commemorations below are observed on September 1 by Orthodox Churches on the Old Calendar.
For August 19, Orthodox Churches on the Old Calendar commemorate the Saints listed on August 6.
Saint Calminius
Saint Namadie
"Donskoy" Icon of the Most Holy Theotokos.
Greek Sources
Russian Sources
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Wikipedia