This day, is called Mathias the Great's day. It is believed to be named after a great hero. Some people believe that there is a connection between this day and Leo the Great's day (April the 11th).

Who Mathias the Great was, is not quite known, but some say, that he came with peace and that he was a man of hope. If this man is a myth or not, is unclear, but in Europe, this day used to be a day of celebration.
"What day is it?"
"november the 12th"
"WOW? Really? Then it's Mathias the Great's day! We should celebrate!"
by European expert November 10, 2013
Get the November the 12th mug.
National make a move day: girls make a move on a boy you like. Make it a big one;)
I'm going to make a move on my couch today because it's November 12th
by The realest one #1 October 20, 2019
Get the November 12th mug.
The great legend, Stan the Man Lee passed on this day, November 12th, 2018, EXCELSIOR!
by madeLAME is sad November 9, 2019
Get the November 12th mug.
Me: let’s sit together on November 12th
Girlfriend: all time bet!!!
by Toby cotly November 6, 2019
Get the November 12th mug.
National kick your tallest friend in the nuts day.This is a day where you have to go up to your tallest friend and kick them in the nuts.
“Hey bro it’s November 12th National kick your tallest friend in the nuts day”
“Alright go for it
“OH SHIT MY NUTS
by シXehn November 6, 2019
Get the November 12th mug.
slap your friend David in the face.
John: Hey David,Do you know what day is it today?
David:November 12th...
John:Slaps*
by that tall friend November 11, 2019
Get the November 12th mug.