The earliest trace located for National Alexander Day is an October 2022 post, and a claim that it was observed around the globe in 2021 is unsupported. No founder, organisation or founding year is on record, and nothing public explains why it settled on October 21.
A compound word before it was a name
Alexander is the Latinized form of the Greek Alexandros, and Behind the Name reads it as a compound: alexo, to defend or help, joined to aner, man. The sense the reference gives is "defending men". Both halves matter, which is why the shorter gloss of "defender" that trails the name around is only half of it.
It was in use before anyone famous carried it. In Greek mythology Alexandros is another name for the hero Paris, and several figures in the New Testament bear it. What made it travel was Alexander the Great, born at Pella in Macedonia in 356 BCE, and the medieval romances built on him long after his death.


