April 8 (Eastern Orthodox liturgics) - Wikipedia
https://en.wikipedia.org/wiki/April_8_(Eastern_Orthodox_liturgics)
Apr. 7 - Eastern Orthodox Church calendar - Apr. 9. All fixed commemorations below are ... 117-138); Monk-martyrs Josiah and Joseph, of Mt. Kharasam, Persia (ca. 341); Saint Celestine, Pope of Rome (432) (see also: April 6 - in the West) ...
Herodion of Patras - Topics
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117-138) Monk-martyrs Josiah and Joseph, of Mt. Kharasam, Persia (ca. 341) Saint Celestine , Pope of Rome (432) (see also: April 6 - in the West) Pre-Schism