Holy Martyr Hyakinthos of Amastris.
St. Hyakinthos was a Christian of Amastris on the Black Sea who cut down a tree venerated by the pagans. For this he was tortured and put to death.
He is commemorated as a martyr of the early Church.
Feast day
On the New Calendar, Hyakinthos of Amastris is commemorated on July 18. Churches on the Old (Julian) Calendar keep the feast on July 31 of the civil calendar.
Also commemorated on July 18

Paul, Valentina and Thea
Martyr, Παύλος, Ουαλεντίνη και Θέη
Holy Martyrs Paul and the sisters Valentina and Thea of Caesarea in Palestine.
Name days: Valentina, Valentini, Oualentini, Valentine
John the Long-Suffering of Kiev
Venerable, Ιωάννης ο Πολύτλας
Venerable John the Long-Suffering, recluse of the Kiev Caves.