June 1 (Eastern Orthodox liturgics) - Wikipedia
https://en.wikipedia.org/wiki/June_1_(Eastern_Orthodox_liturgics)
May 31 - Eastern Orthodox Church calendar - June 2. All fixed commemorations below ... other soldiers, in Egypt (250); The holy Ten thousand Martyrs, in Antiochia (249-251); Martyr Firmus, under the eparch Magus (299); Martyr Gerasimos.
Ten thousand martyrs - Javascript Version
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... is listed on June 1, for the "The Holy Ten Thousand Martyrs" in Antiochia, under .... chose Antioch as one of the four capitals of the short lived Armenian Empire. .... in Egypt (250) The holy Ten thousand Martyrs , in Antiochia (249-251) Martyr ...