Why do we say merry christmas and not happy christmas

BY A STAFF REPORTER: Happy Durga Puja, Happy New Year are greeted by saying these things. But during Christmas, greetings are exchanged not happy, but rather Merry Christmas. But what's the reason for that? It is known that the real role behind the first Merry Christmas in England. In order to popularize this important day of Christianity among the common people, the clergy replaced The Happy with Merry before Christmas. Since then, conservatives and prominent personalities have exchanged greetings saying Merry Christmas. In 1534, Bishop John Fisher wrote a letter to Cromwell, writing Merry Christmas. However, in the early 19th century, Merry Christmas became very popular as a greeting message in many parts of Europe, including England. Christmas cards, or gifts, have Merry Christmas written on them. Merry Christmas became popular all over the world beyond Europe.