ITS FROM A BUNCH OF THINGS
AMERICAN CHRISTMAS IS A SMORGASBORD OF EUROPEAN TRADITIONS
THE STOCKING STUFFERS AND THE PRESENTS UNDER THE TREE ARE BOTH REFERENCES TO SAINT NICK 

HE WAS BISHOP OF THE CITY OF MYRA AND ONE OF HIS PARISHIONERS WAS POOR, HAD NO MONEY TO PAY HIS DAYGHTERS DOWRIES AND WAS TOO PROUD TO ACCEPT HELP
SO SAINT NICK WITH THE HELP OF A FEW CO-CONSPIRATORS CLIMBED THE ROOF OF HIS HOUSE IN THE MIDDLE OF THE NIGHT AND DROPPED A BUNCH OF COINS TIED UP IN A CLOTH DOWN THE CHIMNEY