Christmas Eve ends with Pasterka, the Midnight Mass at the local church. The tradition commemorates the arrival of the Three Wise Men to Bethlehem and their paying of respect and bearing witness to the new born Messiah. The custom of Christmas night liturgy was introduced in the Christian churches after the second half of the 5th century. In Poland that custom arrived together with the coming of Christianity. The next day (December 25) begins with the early morning mass followed by daytime masses. According to scripture, the Christmas Day masses are interchangeable allowing for greater flexibility in choosing the religious services by individual parishioners.