Massacre of the Innocents
Today, December 28th, we see on the general Roman Catholic calendar of saints to remember the Massacre of the Innocents.
Wikipedia says the following about this tragedy.
The Massacre of the Innocents is an episode of Herod's infanticide, attested in the Gospel of Matthew 2:16ff, but not mentioned in the other gospels nor in the early apocrypha.
According to Christian tradition, the described events fulfilled a verse of Jeremiah, interpreted as a prophecy of this event: "Thus says the Lord: A voice is heard in Ramah, lamentation and bitter weeping. Rachel is weeping for her children."
In the event, King Herod the Great ordered the execution of all young male children in the village of Bethlehem, so as to avoid the loss of his throne to a newborn "King of the Jews", whose birth had been related to him by magi.
I would also add a politically incorrect comment concerning how we should also remember all of those babies who have died due to abortion.