And that, Christmas is the feast of the nativity of Jesus, is on 25th, December every year. But nobody knows the actual birthday of Jesus. And the Christmas has become popular when Christmas cards appeared in 1846 and the concept of a jolly Santa Claus was first made popular in nineteenth Century.

The custom of giving gifts to relatives and friends on a special day in winter probably began in ancient Rome and northern Europe. In these regions, people gave each other small presents as part of their year-end celebrations.

In the 1800´s, two more Christmas customs became popular--decorating Christmas trees and sending Christmas cards to relatives and friends. Many well-known Christmas carols, including ``Silent Night" and ``Hark! The Herald Angels Sing," were composed during this period. In the United States and other countries, Santa Claus replaced Saint Nicholas as the symbol of gift giving.

The word Xmas is sometimes used instead of Christmas. This tradition began in the early Christian church. In Greek, X is the first letter of Christ´s name. It was frequently used as a holy symbol.