I don´t know what are the custumms of countries at Asia, Africa and Europe, but at Latin America this night, the night of jenuary 5, has a special meaning for children.
Acording to the holly history, until the night Jesus was born three kings got to Jerusalem with presents for the new king. An angel tell them, in their dreams, that the most important king of the world would be borning in that town and they must to go to see him. They must to go in the direction of a big star to find the new king.
In a memory of that fact, here at México and in another countries of Latinamerica every jenuary 5 children writte a letter to the three kings ans ask for toys. they put the letter in the christmas tree or in one of their shoes or in a globe that they throw to the sky. The next day they runn in order to looking for the presents. Of course the parents are the kings but boys don´t know.
The night of jenuary 5 is a custum to buy a Rosca de Reyes" like a big donut. It has in the interior of the bread the figure of a boy, or more than one, 3, 6, etc. The rosc is for the family and friends, every person must to cut a piece, if someone get the boy, that person mut to invite to the rest of the people to eat "tamales", traditional mexican dish, the night of February 2, the day of the party of Candelaria Virgen.
Today at the office I got a boy, but some others coworkers get one too, then we are going to share the cost of the tamales.
What is the custumm at your country...?