why is it called a christmas carol

Christmas carol is a type of song that celebrates the holiday season. It can be a traditional folk song, a religious hymn, or a modern pop song. The term "carol" comes from the word "caroling," which was a medieval tradition of singing Christmas songs while walking from house to house. The first known Christmas carol was composed in the 13th century, and the tradition has continued to this day, with many popular carols being sung each year.