Who popularized the use of Christmas cards?

Sir Henry Cole, Director of London's Victoria and Albert Museum, found that writing numerous Christmas greetings to friends and colleagues was becoming a time-consuming task. He asked his artist friend, John Calcott Horsley, to design a card which could be used by Cole and also sold to the public. The first Christmas cards were created in England on 9 December 1843. Horsley produced 1,000 lithographed and hand-coloured cards. More like postcards, they sold for a shilling, which was the equivalent of a day's wages for a labourer. It was another twenty years before Christmas cards became commercially viable for the common man, following the invention of cheaper colour lithography. (source: today.wmit.net - 9 December)