Christmas Cards -
1843: the first Christmas card sent out by Sir Henry Cole . But the cards, at first handmade were very expensive at a shilling each; so, did not become popular until later in the century.
But, another refeence states this -
The card was not received without controversy, for it showed a family raising their glasses to toast Christmas. Puritans immediately denounced it, but the idea was a hit with others. The Christmas card became very popular and other artists
quickly followed Horsley's concept. A particularly
popular card was designed by English artist William Egley
in 1849.
Lithography was 'perfected in 1796 / Printing Presses even earlier --> both of these inventions were 'well' in use in Victorian Times.
Christmas cards
gradually replaced New Year's card.
However, the clincher looks like this article -
http://www.collectorcafe.com/article.asp?artic le=150
Tremendous impetus was given to Christmas cards when
cheaper postal rates for printed matter were adopted from 1870 onwards.
{if you believe the www}