December 25 before – The New York Sun, p.8, January 25, 1901 ran a squib about Mark Twain, which appeared on Christmas Day in Vienna’s Neues Wiener Tagblatt:

Prosperity and happiness to my friend in the Emnira. The same to my enemies—on Christmas Day, but not after that date. Mark Twain.

December 25 Wednesday – Christmas – William Winter wrote to Sam, sending him and Livy “a few volumes of his sketches as a Christmas remembrance & as a token of my respect & esteem” [MTP].