*1900 [[Meletius of Ryazan |Meletius]], bishop of Ryazan, missionary to Yakutia, [[January 14]]; [[Martyrs of China|Martyrdom of Orthodox Christians]] in Chinese Boxer Rebellion (Yihetuan Movement), [[June 11]].

*1902 [[Jonah of Holy Trinity Monastery|Jonah]] (Peter in schema), founder of Holy Trinity Monastery in Kiev, [[January 9]]

*1917-40 [[w:Persecution of Christians in the Soviet Union|Persecution of the Orthodox Church in Russia]] begins, with 130,000 priests arrested, 95,000 of whom were executed by firing squad.

*1917 Martyrdom of hieromartyr [[John Kochurov]]

*1918 Jeremiah, Hieromartyr, [[January 1]]; John Piankov and Nicholas Yakhontov priests, [[January 5]]; [[Vladimir (Bogoyavlensky) of Kiev and Gallich|St. Vladimir]]; [[January 25]]; Tsar [[Nicholas II of Russia]] murdered together with his wife [[Alexandra Romanov|Alexandra]] and children; [[Elizabeth the New Martyr]], [[July 18]]; [[Theophanes (Il'minskii) of Solikamsk|St. Theophanes]], [[December 11]]; Sergy (Florinsky) of Rakvere, [[December 17]]; Michael the priest, [[December 21]]; Saints of Ivangorod: Dimitry (Chistoserdov) and Alexander (Volkov) [[December 26]]; Alexander and Demetrius priests, [[December 26]]; Nikodim, bishop of Belgorod and Arcadius deacon, [[December 28]]; [[Peter of Petrograd |Peter]] (Skipetrov) of Petrograd, Archpriest, New Hieromartyr, [[February 1]]; Michael Lisitsyn , the priest of Ust-Labinskaya, Russia, [[February 22]]; Joseph Smirnov the protoierey, John Kastorsky the deacon, Vladimir Ilinsky the priest, hieromartyrs and John Perebaskin the martyr, [[February 22]];

*1919 Death of Saints of Tartu: Platon (Kulbush) bishop of Tallinn, Michael (Bleive) and Nicholas (Bezhanitsky) [[January 1]]; Tikhon, archbishop of Voronezh and with him 160 martyred priests, [[December 27]]; Andrew (Zimin), Archpriest, his wife Lydia, his mother-in-law Domnica, his two daughters and his servant Maria, of Ussurisk [[January 6]]; Nicholas, Theodore and Vladimir priests, Hieromartyrs, [[January 11]]; John priest, Hieromartyr, [[January 16]]; Michael the priest, New Hieromartyr, [[January 18]]; Basil and Gabriel the priests, [[February 13]].

*1919-1922 [[w:Greco-Turkish War (1919-1922)|Greco-Turkish War]]; [[w:Pontic Greek Genocide|Pontic Greek Genocide]] eliminates the Christian population of Trebizond.

*1920 [[Nektarios of Aegina]]; Evmenios of Koudouma Monastery, [[July 10]]; Martyr Alexander the priest, [[December 28]]; Zenobius priest, Hieromartyr, [[January 10]]; John and Leontius priests, new hieromartyrs, Constantine deacon and with them 5 Martyrs, [[January 29]]; [[ Silvester of Omsk and Pavlodar|Silvester]] (Olshevsky), bishop of Omsk and Pavlodar, New Hieromartyr, [[February 13]]

*1936 [[Theoktista of Voronezh|Theoktista]] Michailovna, fool-for-Christ of Voronezh, the New Martyr, [[February 22]];

*1936-37 Many Russian Orthodox Clerics die in Joseph Stalin's [[w:Great Purge|Great Purge]].

*1937 Disappearance of Fr. [[Alexander Hotovitzky]], martyred; Karp (Elb), [[September 11]]; Hieromartyr Sergius, [[December 21]]; Hieromartyrs Leonidas bishop of Mariysk, Andrew bishop of Ufa, Alexander priest, Anthisa, Makaria and Valentina [[December 26]]; Martyr Antonina, [[December 27]]; Hieromartyrs Theoctistus, Leonid priests, [[December 28]]; Michael Hieromartyr priest [[December 31]]; Victor the priest, Hieromartyr, [[January 8]]; [[Cyril of Kazan|Cyril]], metropolitan of Kazan, new hieromartyr, [[January 26]]; Basil Nadezhnin, Priest in Moscow, New Hieromartyr, [[February 6]]; [[Barlaam of Perm|Barlaam]] archbishop of Perm, New Hieromartyr, [[February 7]]; [[Onisimus of Tula|Onisimus]], bishop of Tula, New Hieromartyr, [[February 14]]; Anna the martyr, [[February 26]],

*1938 Death of [[Silouan the Athonite]]; Hieromartyrs Demetrius and Theodore priests [[December 22]]; Hieromartyr Nicetas bishop of Belevsk, [[December 21]]; Hieromartyrs Basil priest, Macarius and John, [[December 23]]; Venerable Isaac of Optina, Hieromartyrs Gregory priest and martyrs Augusta and Mary, Agrippina, [[December 26]]; Hieromartyr Aretha priest, [[December 28]]; Hieromartyr Theodosius priest, [[January 11]]; Peter, Martyr, [[December 31]]; [[Alexander archbishop of Samara |Alexander]], archbishop of Samara and with him John, Alexander, John, Alexander, Trophime, Viacheslav, Basil and James priests, New Hieromartyrs, [[January 1]]; Matthew, Martyr [[January 5]]; Paphnutius, Martyr, [[January 7]]; Demetrius, Vladimir priests hieromartyrs, Michael Martyr [[January 8]]; [[Anatolius, Metropolitan of Odessa |Anatolius]], Metropolitan of Odessa, New Hieromartyr, [[January 10]]; Paul the priest, hieromartyr, [[January 17]], Vladimir, Nicholas, Sergius Alexander priests, New Hieromartyrs, [[January 18]]; Elias the priest, New Hieromartyr, [[January 21]]; John, Nicholas, Jacob, Peter, John, John, John and Euthymius priest, new hieromartyrs, [[January 22]]; Seraphim the new mieromartyr, martyrs Evdokia, Ecaterine and Militsa, [[January 23]]; Stephen priest, martyr Boris, [[January 25]]; [[Ignatius of Skopinsk |Ignatius]] bishop of Skopinsk, Arcadius, Vladimir and Bartholomeus the hieromartyrs, and John and Olga the Martyrs, [[January 28]]; Nicholas the priest, New Hieromartyr, [[February 1]]; Basil the priest, New Hieromartyr, and Michael the Martyr, [[February 2]]; John, Timothy priests, New Hieromartyrs, and Vladimir, Martyr, [[February 3]]; Eustaphius, John, Alexander, Sergius, John, Theodora, Aleksander, Nicholas, Alexis, Nicholas, Alexis, Alexander, Arcadius, Boris, Michael, Nicholas, Alexis, Andrew, Demetrius, John, Peter priests, the New Hieromartyrs, Martyrs Seraphim, Rafaila, Anna, Catherine, John, Basil, Demetrius, Theodore, and Demetrius, [[February 4]]; Matushka Agatha of Bielorussia, New Martyrs, [[February 5]]; Alexander the priest, New Hieromartyr, [[February 6]]; Alexander the priest, New Hieromartyr, [[February 7]]; Simeon, Andrew, Sergius and Peter, priests and the New Hieromartyrs, [[February 8]]; John the priest, New Hieromartyr, [[February 9]]; [[Anatole of Odessa|Anatole]] (Greesiuk), metropolitan of Odessa, the New Martyr, [[February 10]]; Zosimas, Nicholas, Basil, John, Leontius, Vladimir, Parthenius, John, John, Michael priests hieromartyrs, and Martyrs Paul, Anna, Vera and Irina, [[February 13]]; Tryphon the deacon, New Hieromartyr, [[February 14]]; Nicholas, Alexis, Alexis the priests and Simeon the deacon, New Hieromartyrs, Paul and Sophia the martyrs, [[February 15]]; Paul the priest, New Hieromartyr, [[February 16]]; Michael and Paul the priests and New Hieromartyrs, [[February 17]]; Benjamin the hieromonk, Hieromartyr, [[February 18]]; Nicholas the priest, New Hieromartyr, [[February 20]]; Constantine priest, Paul deacon the Hieromartyrs and Olga the Martyr, [[February 21]]; Michael, John, Victor, John, Sergius, Andrew priests, Sergius and Antipa the New Hieromartyrs, Parasceva, Stephen, Elizabeth, Irina and Barbara the martyrs, [[February 22]]; Alexis, Nicholas priests and New Hieromartyrs, and Sergius Martyr, [[February 23]]; Alexander, the priest, Mstislava, the martyrs, [[February 25]]; [[John of Rylsk|John]], bishop of Rylsk and John the priest, New Hieromartyrs, [[February 26]]; Peter the priest and Hieromartyr, Martyr Michael, [[February 27]];

*1939 Nicholas the priest, Hieromartyr, [[January 4]]; Basil, priest, Hieromartyr, [[January 7]]; Eugene the Schemamonk of Bielorussia, [[February 5]]

*1940 Death of Hieromartyr Leontius deacon, [[December 21]]; John, Martyr [[January 7]]; Theodore the Martyr, [[January 19]]; Paul the priest, New Hieromartyr, [[January 20]];