No documented founder, proclamation, registration or formal establishment record for National Samuel Day has been identified. The day circulates on social media and on holiday listing sites, and the earliest dated observance located in this research is an Instagram post from December 27, 2022.
Three readings of one Hebrew name
The name comes from the Hebrew Shemu'el, and its meaning has never been settled. Behind the Name gives "name of God", built from shem, meaning name, and el, meaning God. The same entry records a second reading, from a root meaning to hear, which yields "God has heard".
Wikipedia's article on the name offers a third, and hedges it carefully. It says the name could alternatively come from a contraction of the phrase in the verse where Hannah names her son. None of the three readings has retired the other two.
As a Christian given name, Samuel came into common use after the Protestant Reformation. Behind the Name and Wikipedia both date the shift that way. Neither explains why, and the sources give sequence rather than cause.


